Contour RollerMouse Red-Ergonomic mouse-central pointing device-wired-USB<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"> Controlled by a fully open rollerbar， which encourages the use of both hands </span></li><li><span class="a-list-item"> Unparalleled precision with tracking technology inside the rollerbar – up to 2400 dpi </span></li><li><span class="a-list-item"> Aluminum body with detachable leatherette wrist rest </span></li><li><span class="a-list-item"> Eight key functions made for productivity and ergonomics， including the “one touch” double click， copy and paste </span></li><li><span class="a-list-item"> Keyboard risers make it possible to customize keyboard height and angle to ensure optimal comfort and working position </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31fJEvTjJ%2BL.jpg" noproxy>