"☞ Durable: Each wheel is made of sturdy and durable materials, can run under continuous and strong pressure, and will not crack, flatten or wear over time.☞One pair price, thick solid wear-resistant front wheel of wheelchair.☞Three-year after-sales guarantee. If there is any problem with your product within 3 years, please contact us and we will deal with it for you.""High-grade alloy and ABS material, durable.Heavy-duty, wear-resistant, smooth, silentApplicable to the front wheels of most manual wheelchairs and walkersAll joints use ball bearings, solid tires bring maximum load capacity and long working lifeComes with screws, easy to install and removeMaterial: ABS + alloySize: 6 inches; 7 inches; 8 inches; 10 inches (optional)Bearing diameter: approx. 0.8 cm★Please refer to the size and allow a slight measurement error within the normal range. Due to the influence of the monitor, camera or other factors, there may be some color differences, please refer to the actual product.★The delivery time is usually 15-20 days. If you still have not received the goods within 30 days, please contact us in time and we will try our best to solve it for you. "