Large ball Trackball Mouse with Scroll Ring for comfort and precision
Customizable 4-Button design via TrackballWorks software
Compatible with Windows (including Windows 8) and Mac OS Computers

Technical Details

Size (LWH): 7.5 inches, 6.2 inches, 3.6 inches
Product Details
Product Dimensions: 7.5 x 6.2 x 3.6 inches
Shipping Weight: 1.45 pounds (View shipping rates and policies)
ASIN : B00009KH63