No more bending, kneeling or crouching by using this pneumatic rolling mechanic stool! After a simple installation, this roller seat is ready to help you to repair cars or handle other projects. The 16" - 22" adjustable height and 330 lbs weight capacity make this roller seat suitable for most users. When you sit on it, this adjustable rolling stool brings you a cozier sitting feeling thanks to its soft padded seat. If you need to repair other tires, just move this rolling stool chair with 4 universal casters. And the seat is rotatable as well for extra convenience. What’s more, the large tool tray with 4 removable chassis keeps the needed tools close to hand. And one of the chassis is magnetic to better store the small tools. FeatureAdjust 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 requiredSpecificationColor: Black/Yellow/Red Material: Metal, Faux Leather, Pearl Cotton, PVC, PP, ABS Overall Dimension: 20" x 20" x 16" - 22" (L x W x H) Size of Seat: 12" x 2" (Dia x Thickness) Net Weight: 11 lbs Weight Capacity: 330 lbs Package Includes: 1 x Rolling Mechanic Stool 1 x Instruction