BEVCO Mobile Maintenance Repair Stool is ideal for use in machine shops, warehouses, and industrial applications where you would have to bend or crouch down. Space for tools on convenient tool tray underneath seat. 15" diameter polyurethane seat adjusts pneumatically 15–20"H. Sturdy 5-legged base rolls on locking 3" polyurethane casters. 12-year guarantee (lifetime on cylinder). Meets or exceeds applicable ANSI/BIFMA standards. Made in USA.