HERCULES AUTOLOCK Z-KEYBOARD STAND W/TIER The HERCULES Z-Style Keyboard Stand KS410B is the KS400B with an additional adjustable EZ-LOK Tier for an added keyboard. Features: AutoLock System with AutoLock 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 [...]