Comfortable mice that are simple to use. • Symmetrical design for both right- and left-hand comfort; EasyGrip® sides. • DiamondEye® optical technology tracks precisely on any surface. • 5 programmable buttons and scroll wheel work with MouseWorks® software for maximum options. • USB connectivity for Mac® & PC. • 4.875"L x 2.5"W x 1.5"H.