● Adjust the roller chair from 16 inches to 22 inches for different needs● SGS certified pneumatic rod for smooth adjustment● Move wherever you want with 4 universal casters● 360° rotatable seat for additional convenience● Get maximum comfort when sitting on the soft padded seat● Premium faux leather is waterproof and oil-proof for easy maintenance● Convenient to fetch the needed tools thanks to its large tool tray● Make tools closer with 4 removable chassis● Put small tools in the magnetic quarter chassis for better storage● Sturdy metal frame for 330 lbs stronger bearing capacity● Simple installation required Installation guide