Sold as 1 Each. Form factor: Desktop, tabletop. Extra-large 15.5' x 11.25' platform accommodates riser securely in a place. Easy to assemble in seconds. Comes with 5 years limited warranty. Comes in black color. Suitable for home or office usage. Includes long legs, short legs, rubber feet and owner's manual. Dimensions: 5.5'(H) x 15.6'(W) x 11.3'(D). Raises monitor from 1.25' - 5.5' above the desk surface to open up valuable work space. RoHS Compliant. Maximum load capacity: 40 lbs. Reduce strain on eyes and neck. Weight: 0.82 kg.