California phenolic keyboard tray with angular design helps mimize overreaching while using a mouse. Leverless Lift-N-Lock arm provides effortless height adjustment. Easy to view tilt dial with soft touch adjustment knob. Viscoflex memory foam wrist support is easy to clean. Equipped with an all-steel 22in friction-free teflon mounting track. Sit-to-Stand Option: No; Weight Capacity: 16 lb; Height +/- Desktop: +2in Above to -6in Below; Keyboard Tray Dimensions W x D: 28in x 10in.