Constructed with 30 x 30 mm steel tubing and arc-welded joints, this bench has a unique spring-loaded locking pins at base of the safe and secure height adjustments. It adjusts to four height positions and includes a padded seat cushion reinforced with dual steel rails. With a 300 lb (135 kg) weight capacity and durable, textured vinyl seat covering this keyboard bench is accomidates almost any player.