Lever handle ensures positive lock on platform height; just flip lever to the right, adjust height and move lever back to lock in place. Separate pull lever for tilt adjustment. Mousing surface can be positioned left or right. Gel wrist rests with antimicrobial product protection inhibits the growth of microorganisms, such as bacteria, that can cause stains, odors and product degradation. Leatherette wrist rest cover is more durable than fabric and easier to clean. Precise™ mousing surface extends the battery life.