The height adjusts for listening sitting or standing and will lock in place with a security pin and three removable leveling spikes on the bottom of the base keep this stand stable on any carpeted surface. Entire stand breaks down into three pieces for easy storage and travel. Features: 9 1/2 Square platform w/ 1mm thick non-slip pad. Height adjusts from 36.5 -54 with line-it-up pin-locking positions every 4 . Wire holder keeps wires untangled and flush with stand. 18 Base with 3 leveling spikes keeps this stand stable on carpeted surfaces. Specifications: Applications: Large heavy-duty speakers Height Adj.: 36.5 - 54 œ Weight Capacity: 90 lbs. Platform: 9 1/2 Square platform w/ 1mm thick non-slip pad Base Spread: 18 Construction: Steel Color: Black Powder Coat Finish