The HERCULES Z-Style Keyboard Stand KS410B is the KS400B with an additional adjustable EZ-LOK Tier for an added keyboard. FEATURES Auto Lock System with Auto Lock Lever adjusts height setting easily and is safe and secure. Locking Pins and adjustable moving arms for easy set up and tear down. The Adjustable Rubber Foot fine tunes height and levels the KS410B for maximum stability. The EZ-LOK Tier locks KS410B at the chosen angle. SPECS Base Z stand Height: 605 mm - 930 mm (23.8" - 36.6") Width: 510 mm - 850 mm (20" - 33.5") Support depth: 450 mm (17.7") Upper Tier Height: 240 mm - 430 mm (9.4" - 16.9") Depth: 400 mm (15.7") Angle: 70°, 90° Load capacity: 40 kg (88 lbs.) Weight: 11.6 kg (25.5 lbs.) Load Capacity: 130 kg (286 lbs.) Folded Size: 705 mm x 605 mm x 175 mm (27.7" x 23.8" x 6.9")