Height adjustable track with ball bearing hardware ensures smooth operation. Includes gel wrist rest with antimicrobial product protection which inhibits the growth of microorganisms, such as bacteria, that can cause stains, odors & product degradation. Also includes a Precise Mouse Pad with battery saving design that enhances the precision of optical mice at fast speeds & extends battery life of wireless mice up to 50%. Workstation Type: Straight; Sit-to-Stand Option: No; Height (+/- Desktop): -1.75" Below to -3.5" Below; Keyboard Tray Dimensions (W x D): 23" x 14".