On-Stage KS7291 Pro Heavy-Duty Double-X Keyboard StandThe On Stage KS7291 Pro Heavy Duty Double X Keyboard Stand is rugged and features a total weight capacity of 320lb (145kg), suitable for large keyboards, consoles and other gear. The stand features On Stage's Ergo Lok technology and folds flat for easy transport and storage. The patented ERGO LOK Technology includes an ergonomic trigger, an internal rod mechanism and a solid steel spring loaded deadbolt assembly. Simply squeeze the ergonomic trigger