Unfortunately there is no other belt that you can use on your Kirby, it’s a one size fits all type of belt. You may wish to replace your roller brush, and ensure that the roller brush has been properly inserted into the head of the Kirby, this would cause the belt to continue to break, or your roller brush may also have gone bad. Here’s a video that will help you make sure that the belt is being put on correctly, as well as the brush. http://www.youtube.com/watch?v=At7tqnjD-Kc inserting the belt and the brush in the vacuum. Let me know if you have any questions that I may answer for you. You can also order Kirby belts online, visit http://www.govacuum.com/kirby-vacuum-belts.html