However, if you are a permanent crutch user, the wear and tear of parts will depend on a) your weight b) how much indoor versus outdoor use there is c) how much weight bearing there is. Many users never need to replace any parts including the crutch's rubber tips. However, for very hard-wearing users, the crutch rubber tips, foam pads in the cuff, and the handles (if the rubber wears down eventually) may need replacing over time. You can return to the website anytime and buy these spare accessories as you need them. If you are concerned you can always buy some spare accessories with your initial purchase, and we include this in the standard shipping price. You can read more about our Warranty and Replacement Terms here.