You can call us at 559-250-0552 or e-mail us at [email protected]. You can also visit our website at http://www.tireringmaster.com In the field of mounting tires, we are providing an easy answer to a sometimes very difficult problem. The problem is when you are mounting a new loader tire, more times than none, it is very difficult and troublesome to push the outer ring and the bead of the tire on the rim with bars and hammers. The solution to this problem is new invention called the Ring Master. Change large tires in 47min instead of 120 min when one person is changing the tires.