On Stage Stands Deluxe Heavy Duty X 2-Tier Keyboard Stand

This pro-level double-X stand is built and styled for demanding musicians. Super heavy-duty tubing and welded construction supports 395 lbs. on the bottom tier. Frame allows height adjustment from 27" to 39" and width adjustment from 11" to 30". The second tier supports 75 lbs. Uses ERGO-LOK technology for ease of use. The ERGO-LOK system includes an ergonomic trigger, an internal rod mechanism, and a solid steel spring-loaded deadbolt assembly. Uses dual sheer disk plates and heavy-duty deadbolt for superior stability.Assembling the 2 pieces: 1. Remove upper rear end caps from keyboard stand. 2. Take 2nd tier assembly and slide inner retainer into upper tube of stand. 3. Once second tier retainer is fully inside tube, then fully tighten 2" round OSS knobs.