The total dimensions of the wheel (diameter x width) are 150 mm x 24 mm / 5.9 x 0.94, the inner diameter of the central bearing is 8 mm / 0.3, and the length of the axle screws is 75 mm / 2.95. (Check detailed dimensions in the third image before purchasing) The package includes 2 x grey front replacement wheels, 2 x axles, simple and convenient installation without complicated steps, saving you time and effort. Made of high-quality and environmentally friendly rubber material, this set of solid replacement wheels is non-slip and dust-free with strong wear resistance and load-bearing capacity. Wide application to disabled vehicles, medical vehicles, etc., compatible with most wheelchairs, rollators, walkers, or other 6-wheel replacement accessories. This set of front wheel replacement provides quiet, smooth, and easy rolling on all surfaces, suitable for indoor and outdoor use, labor-saving, practical, and long-lasting. Choose this set of 15 cm rubber rims for wheelchairs, rollators, walkers, and replace them easily and conveniently yourself. Specification: Material: Solid rubber Color: Grey Total dimensions of the wheel (diameter x width): 150 mm x 24 mm / 5.9 x 0.94 Inner diameter of the central bearing: 8 mm / 0.3 Distance between bearings on both sides: 40 mm / 1.57 Length of axle screws: 75 mm / 2.95 Total weight: 700 g Package includes: 2 x black 15 cm front replacement wheels 2 x axle screws Our products are made from the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the product's size and dimensions to ensure it meets your needs. In the title and description, we have provided detailed information about the product, including its features and specifications. We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please do not hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it.