Beyond versatile, the transformative On-Stage KSA8500 boasts 2 sets of fully and independently adjustable arms for the ultimate in 2nd tier -- or even 2nd and 3rd tier -- customization. Compatible with any 1" square or 30mm round-tubed stand, as well as On-Stage Z stands, each of the KSA8500's support arms feature an independent 10-degree increment posi-lok adjustment for height, angle, depth and width, providing 43.5" of total width distributed over a 2nd or 2nd and 3rd tier configuration. The telescoping stabilizer bar accommodates keyboard stands up to 32" in width, while non-slip rubber end caps protect an almost limitless array of keys, laptops, mixers and more.