The KS8291 is designed with strength and comfort in mind. This pro-level model features the heaviest tubing we have in our arsenal and is built with an ergonomic trigger and a solid-steel spring-loaded deadbolt. Lok-Tight construction makes for easy assembly. Applications: Large-format keyboards Weight Capacity: 320 lbs. Height Adj.: 27?-38? Base Spread: 12?-32?? Arm Depth: 14.125 Tubing: 30mm Construction: Lok-Tight Color: Black Powder Coat Finish Gross Weight: 20.63 lbs