Zowie FK 2300 DPI USB PC Computer Optical Gaming Mouse Mice Ambidextrous mouse developed for claw grip usage Two thumb buttons on both sides to comfortably serve left- and right-handed users Easy to switch between left- and right-hand functionality, no driver needed New improved coating method, feels like rubber, increased durability. -ZOWIE custom-designed lens for a very low lift-off distance = 1.5 ~ 1.8mm