This Big Red 12 ton jack stand has heavy-duty steel construction with double-locked pawl-and-tooth design. Double locking jack stands come standard with an additional locking pin to ensure extra safety. Large saddle and base for added safety With ANSI certified and 100% factory tested for reliability and safety. Heavy-duty steel construction Double-locked pawl-and-tooth design ANSI certified and 100% factory tested for reliability and safety Large saddle and base for added safety Dimensions (L x W x H) : 20 x 18 x 24″ Adjustable Height: 18-5/16″ to 28-1/8″ Warranty: 1 year Sold as pair