We're sorry you received a replacement wheel kit that did not fit your trash cart. However, please know that this page is for communications about the product itself, not the retailer, and clearly you did not get your information from a Toter customer service representative. If you had, either through calling Toter customer service or asking a question on this product page (we respond to questions within one business day) we'd have told you that Toter wheel replacement kits are made, marketed, and warranted only for Toter-brand two-wheel trash carts. They fit our trash carts perfectly. For people looking to fit one of our wheel kits to their non-Toter-brand trash cart, we're happy to provide our specs. We make wheel kits for Toter carts in capacities of 32, 48, 64 and 96 gallons. Respectively, the axle lengths are 16, 17.5, 18.25, and 22 inches. All axles are 5/8 inches in diameter, and all wheels have a 10-inch radius, except for our 32-gallon cart, which has 8-inch-radius wheels. For any questions, please contact Toter customer service at 800-424-0422 (select option "2" for retail customers). Thank you.