YUMQUA Y-10L Portable Finger Handheld Wireless Built-in Laser Pointer USB Trackball Mouse for Left/ Right Handed Users(Black) Laptop Lovers<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"> Free replacement and after sale service available， please buy with confidence. </span></li><li><span class="a-list-item"> Thumb-controlled trackball， Off-table design for free and comfortable operation </span></li><li><span class="a-list-item"> Dolphin shape design with left/right clickers， fit left and right handed users </span></li><li><span class="a-list-item"> Connects via USB Port，Plug and play， no software required </span></li><li><span class="a-list-item"> It can greatly ease the harm of palm joint or muscle for long time using mouse </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41hlJiog46L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mhtYNkChL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41R0bpqdLQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51k7XhAHobL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31gertH%2BlvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41dbW9qI%2BRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41a2rbNGPLL.jpg" noproxy>