Kensington Orbit Trackball Mouse (K64327F)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Trackball Mouse for comfort and precision </span></li><li><span class="a-list-item"> Customizable 2-Button design via TrackballWorks software </span></li><li><span class="a-list-item"> Compatible with Windows (including Windows 8) and Mac OS Computers </span></li><li><span class="a-list-item"> Orbit Optical Trackball Mouse </span></li><li><span class="a-list-item"> Comfortable for left or right-handed users </span></li><li><span class="a-list-item"> Compact design， stays put and takes up less space </span></li><li><span class="a-list-item"> It's inexpensive， looks cool and performs well </span></li><li><span class="a-list-item"> Five year warranty </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/415jXmJL-zL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41lqmQr0gEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31lKg1RkJPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41rWP0KqXQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41fOv5o%2Bd6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/616FwXdq6OS.png" noproxy>