These solid tires are made from polyurethane foam and are designed as 24 by 1 inch no-flat replacements that come with two tires and mounting tools. They are compatible with most nine-spoke 24-inch plastic wheelchair wheels across brands, but they do not fit the majority of wire wheel configurations. Solid tires are slightly smaller than the wheel rims, which is normal, yet they can sit securely on 24-inch plastic rims when mounted correctly. Because the fit is snug, mounting often requires some force; using a pry tool can help, and soaking the tires in hot water for ten minutes can ease the process. There are multiple installation methods and online tutorials that demonstrate different approaches to fitment, so users can choose the method that works best for their setup. Guidance resources are available to answer common questions and assist with fit concerns, and support is available through the retailer for setup and troubleshooting when needed via available channels and guides. This information focuses on functionality and safe installation, avoiding marketing language while providing practical steps for use. Keep in mind that wheel specifications vary, so verify compatibility with your wheelchair model before proceeding. If you encounter fit issues, consult the provided resources for troubleshooting steps.