Logitech Trackman Marble Trackball Mouse – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray

Left handed? Right handed? When you're working on your computer day and night, and you want more flexibility, the Logitech Trackman Marble will help increase your comfort level. Ambidextrous trackball designA trackball design with a long, broad palm area and gentle curves keeps your hand comfortable and supported all day-whether you use your right or left hand. Stable baseYour hand stays comfortable all day long with this stay-put design. Plus, it saves you space. Convenient button controlsButtons let you easily move forward and backward when you're surfing the Web. Fingertip-based controlYou’ll enjoy fast, accurate cursor movement with just a move of your finger. Marble optical technologyOur patented technology gives you smooth tracking on almost any surface so you can be productive wherever you work.* * Does not work on clear glass or mirrors Features: * TRACKBALL COMFORT - Sculpted ambidexterous shape supports your right or left hand and stays in one place—move the cursor without moving your arm * CONVE...