Mouse Platform features: Mouse platform easily slides from side to side to accommodate left or right-handed mousing Mouse-trap keeps mouse in place Features Mouse-Forward design for improved comfort Keyboard Platform features: Model UB-2180S-25 ergonomic keyboard platform Patented keyboard platform blends functionality with contemporary, high-tech design Platform includes built-in document holder and cord management for keyboard and mouse Removable palm support Keyboard Arm features: Pinnacle 2 Adjustable Keyboard Arm with 17" or 22" low profile ball bearing track Height range: flush to 6" below the worksurface Tilt range: -15° to +10° 360º swivel–easy positioning and storage No-knob, no-lever Lift-n-Lock Maximum knee clearance Available in black only