Under proper normal use the demount tips can last 100 tire changes or more. If you happen to break the demount tip or want extra demount tips call No-Mar, Dennis Kirk, 2wheel.com, bluestreakracing, Amazon, part-unlimited etc... I do not sell replacement demount tips! The last time I looked No-Mar had the best prices. The 6/6 nylon mount end can be replaced for $10. If you bend or break the bar then you are on your own and probably don't need to be changing your own tires.
Returns are accepted under the following conditions. If the tire tool hasn't been used, a full refund minus my shipping charges will be issued but the customer pays the return shipping fees. If the tire tool has been used, then the refund the customer receives will be minus the shipping charges and my cost of both replacement ends which is $18. The customer also pays the return shipping fees.