Black Metal Trackball

Black Metal Trackball Quick detail 1)Actuator/keys: 67 keys, black color stainless steel 2)Key Size: 14.0mm x 14.0mm for normal keys, 14.0mm x 28.0mm for enter key, 14.0mm x 100.0mm for space bar. 3)G.W.:1.30KGs 4)Waterproof Description 67 keys compact format vandal proof IP65 level stainless steel keyboard with integrated IP68 level dynamic rated washable 38mm stainless steel optical trackball module with 800 DPI resolutions, with extremely smooth operation without noise,