The best trackball ever made has just gotten better. Designed for PCs and Mac's, the new Expert Mouse® employs Kensington's Diamond Eye® optical technology for smooth, precise cursor movement. Surrounding the ball, we have a brand new implementation of our award winning Scroll Ring® that puts scrolling right at your fingertips. More comfortable than ever, the Expert Mouse® even comes with a soft new wrist rest-right in the box! You get all of these great new features along with the same, large ball, exceptional control, and ease-of-use that has set the industry standard for more than 15 years.

• DiamondEye® Optical tracking for superior accuracy
• Award-winning Scroll Ring® for precise fingertip scrolling
• Exceptional comfort for ultimate productivity
• Large ball for maximum precision and control
• Detachable wrist rest cradles hand in comfort
• Metallic black and silver color scheme