Delicol 2015 New Ergonomic Articulated Aluminum Alloy Silver Adjustable Computer Arm Rest Wrist Rest Elbow Rest Flexible and freely adjustable; Strong Aluminium Alloy makes it extreme durable; Support up to 10kgs (or 22lbs) Effectively relieves 90% of the weight undertaken by your wrists; Also reduce stress from cervical vertebrae, shoulder and arm Keep correct posture, avoid cervical vertebrae ache and nearsightedness. Uniquely design makes your hand move freely, comfortably and effortlessly to work there is 2nd generation arm stand can adjust the height,plz search it by entering in B014Y72NRW in search toolbar.