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Jam-free compact stapler delivers powerful stapling performance with the benefit of a cushion grip for comfortable handheld use. It is sized to fit perfectly in the palm of your hand, feels sturdy, and easily clinches to securely fasten up to 40 sheets at once. This higher capacity stapling makes the durable Optima 40 Compact Stapler an ideal choice for office workers. It also features flat clinch stapling, forming staples flat so that stapled papers can be stacked neatly on top of each other without toppling over. Standard top-loading magazine holds a half strip of staples and is easy to refill. This model performs best when used with Swingline Optima Premium Staples or S.F. 3 Premium Staples. Stapler is black and silver with orange accents

Sloan sensor activated soap dispenser is touch-free operation. Touch-free operation improves hand washing hygiene. Economical pre-measured soap dispensing saves soap and money. Soap refill cartridge is easy to replace and provides a new mechanism and soap path with every replacement. Color: Chrome. Material: Plastic.

Optimization theory is designed to find the best ways of doing things. The structures of animals, their movements, their behavior, and their life histories have all been shaped by the optimizing processes of evolution or of learning by trial and error. In this revised edition of R. McNeill Alexander's widely acclaimed Optima for Animals, we see how extraordinarily diverse branches of biology are illuminated by the powerful methods of optimization theory. What is the best strength for a bone? Too weak a bone will probably break but an excessively stout one will be cumbersome. At what speed should humans change from walking to running? Should a bird take only big juicy worms or should it eat every worm it finds, and do birds make the best choices? Why do the males of some species of fishes and the females of others look after the young, while the young of others are looked after by both parents or neither? Is it possible that all these policies can be optimal, in different circumstances? This book shows how these and many other questions can be answered. The mathematics involved is explained very simply, with biology students in mind, but the book is not just for them. It is also for professionals, ranging from teachers to researchers.

Stapler features die-cast, all-metal design and enhanced soft feel for maximum durability, comfort and performance. Staples up to 25 sheets of 20 lb. paper with 25 percent greater capacity than standard desktop staplers when using S.F. 4 staples. Stapler offers jam-free performance.

Optima 45 Electric Stapler fastens up to 45 sheets at a time using Optima Premium Staples. Quiet performance blends into an office environment. Flat clinch mechanism means neater stacks of stapled paper. Intuitive user control puts you in charge of where and when stapling activates. Insert paper for automatic stapling, or press the comfortable grip and let the stapler's motor do the work. LED low staple indicator helps prevent you from running out of staples. Electric stapler includes stack height gauge and staple placement guides. Delivers jam-free stapling with Swingline S.F. 4 or Optima Premium Staples.

Stapler is ergonomically designed for handheld use and delivers jam-free performance with every staple from first to last. Use it to increase productivity with 25 percent greater capacity than standard staplers. Stapler fastens up to 25 sheets with Swingline S.F. 4 Staples and holds a strip of 210 staples. Innovative streamlined design lets stapler stand vertically or sit horizontally.

Compact stapler is ergonomically designed for handheld performance. It stands vertically or sits horizontally. It loads half strip of 105 staples. Breakthrough design delivers jam-free performance. Fasten 2 to 25 sheets of 20 lb. paper with Swingline Speed-point Premium Staples (sold separately). Durable metal construction delivers maximum durability.

Stapler is ergonomically designed for handheld use and delivers jam-free performance with every staple from first to last. Use it to increase productivity with 25 percent greater capacity than standard staplers. Stapler fastens up to 25 sheets with Swingline S.F. 4 Staples and holds a strip of 210 staples. Innovative streamlined design lets stapler stand vertically or sit horizontally.

Stapler features die-cast, all-metal design and enhanced soft feel for maximum durability, comfort and performance. Staples up to 25 sheets of 20 lb. paper with 25 percent greater capacity than standard desktop staplers when using S.F. 4 staples. Stapler offers jam-free performance.

Optima Grip 20-Sheet Half-Strip Electric Stapler delivers jam-free stapling of up to 20 sheets with Optima Premium Staples. Fast and quiet, this electric stapler works automatically or user-controlled. Ergonomic for desktop or handheld use, it includes a QuickLoad feature and runs on AC adapter or four AA batteries (not included). Compact design lets you take reliable automatic stapling wherever you need it.

Optima 70 Electric Stapler fastens up to 70 sheets at a time. Quiet performance blends into an office environment. Flat clinch mechanism means neater stacks of stapled paper. Flip-up alignment guides and illuminated staple placement guide for perfect stapling results. Intuitive user control puts you in charge of where and when stapling activates. Insert paper for automatic stapling, or press the comfortable grip and let the stapler's motor do the work. LED low staple indicator helps prevent you from running out of staples. Electric stapler delivers jam-free stapling with Swingline High-Capacity Staples.

Optima 70 Desk Stapler combines jam-free flat clinch technology and 70-sheet capacity. Ergonomic handheld design takes less effort to operate. Quietly staple documents from 2 to 70 sheets with standard-size staples. Staple with up to 50 percent less effort than a conventional stapler. Staples lie flat on the back of documents with flat clinch technology. Stapler will not jam when you use Swingline High Capacity Staples. Innovative, Quickload magazine system allows strips of 210 staples to be quickly and easily loaded at the front of the stapler. Desk stapler offers durable metal construction, 2-1/2" throat depth and soft grip surfaces.

Optima 40 Desk Stapler combines jam-free flat-clinch technology and 40-sheet capacity. Ergonomic handheld design takes less effort to operate. Quietly staple documents from 2 to 40 sheets with standard-size staples. Staple with up to 50 percent less effort than a conventional stapler. Staples lie flat on the back of documents with flat clinch technology. Stapler will not jam when you use Swingline S.F. 4 or Optima Premium Staples. Innovative, Quickload magazine system allows strips of 210 staples to be quickly and easily loaded at the front of the stapler. Desk stapler also offers durable metal construction, 2-1/2" throat depth and soft grip surfaces.

Optima Grip 20-Sheet Full-Strip Electric Stapler delivers jam-free stapling of up to 20 sheets with Optima Premium Staples. Fast and quiet, this electric stapler works automatically or user-controlled. Ergonomic for desktop or handheld use, it includes a QuickLoad feature and runs on AC adapter or six AA batteries (not included). Compact design lets you take reliable automatic stapling wherever you need it.

Electric pencil sharpener delivers fast, quiet and reliable sharpening. Powerful AC motor combined with carbon steel blades provide a perfect pencil tip in seconds, while being quiet enough for noise-sensitive environments. Movable dial accommodates six different pencil sizes including triangular student pencils. Translucent, spill-resistant shavings receptacle eliminates mess and allows you to see when it is full. Storage area organizes pencils. Pencil stop feature prevents oversharpening, and thermal cutoff prevents overheating.

Optima Staples feature a premium-quality design to deliver jam-free stapling in Swingline Optima staplers (sold separately). Plus, their universal construction also provides excellent stapling performance when used with desktop, grip and electric staplers. Sturdy metal construction effortlessly pierces through papers for reliable, consistent performance. Staples with a 1/4" leg length come in a reusable container for safe storage and transportation.

Optima 45 Electric Stapler fastens up to 45 sheets at a time using Optima Premium Staples. Quiet performance blends into an office environment. Flat clinch mechanism means neater stacks of stapled paper. Intuitive user control puts you in charge of whe

Optima Grip 20-Sheet Full-Strip Electric Stapler delivers jam-free stapling of up to 20 sheets with Optima Premium Staples. Fast and quiet, this electric stapler works automatically or user-controlled. Ergonomic for desktop or handheld use, it includes

Optima 70 Electric Stapler fastens up to 70 sheets at a time. Quiet performance blends into an office environment. Flat clinch mechanism means neater stacks of stapled paper. Flip-up alignment guides and illuminated staple placement guide for perfect s