• Allows you to mount and air up tires without putting them on a rim
• Mounts to about any type of prep stand and comes standard with 5 on 5 and Wide 5 mount
• Simplifies sizing a tire for true stagger, siping, grooving, grinding and anything else you do to prepare your tires
• Sprint Car wheels will do all sizes for sprint car tires and includes 1- 3" spacer and 2- 1" spacers for each size of tire
• Complete with (2) sure-lock pins and a solid safety plate that screws on to the end of shaft for added safety
• Not intended for over pressuring or "growing tire", has a 25 lb pop off valve for safety
• Comes with a spare set of seals
• Made in the USA