The overall dimension of the wheel (diameter x width) is 150mm x 24mm / 5.9 x 0.94, the inner diameter of the center bearing is 8mm / 0.3, and the length of the axle screws is 75mm/2.95. (Please check the detailed dimensions on the third picture before purchasing) Package includes 2x Gray Front Spare Wheels, 2x Axles, easy and convenient to install without complicated steps, saving your effort and cost. time. Made of high quality and environment-friendly rubber material, this solid replacement wheel set is anti-slip and dustproof with strong wear resistance and load-bearing capacity. Wide application on handicapped vehicles, health care vehicles, etc., compatible with most wheelchairs, walkers, walkers or other replacement accessories with 6" wheels. This front wheel replacement set will provide a quiet, smooth and light ride on all surfaces, suitable for indoor and outdoor use, economical, practical and long term to use Choose c and 6 inch rubber wheel replacement set for wheelchairs, rollators, walkers and easily and conveniently replace them on your own Specification: Material: Solid Rubber Color: Gr ey Overall Wheel Dimension (Diameter x width): 150mm x 24mm / 5.9 x 0.94 Center bearing inner diameter: 8mm / 0.3 Distance between bearings on both sides : 40mm / 1.57 Axle bolt length: 75mm / 2.95 Total weight: 700g Package includes: 2 x 6 inch black front spare wheels2 x axle screwsOur products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don"t hesitate to . We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy itWhen shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to . We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it