Can be used as wheels, widely used in disabled vehicles, healthcare vehicles, etc. Can be rolled lightly over all surfaces, labor-saving and practical to use. Easy to install and remove, made of quality and reliable rubber material. Sturdy and durable, quality wheel, wear - resistant, non - slip, durable use Good reliability, small size, light weight, beautiful appearance. Specification: Item Type: Wheelchair Front Wheels Material: Rubber Steering: Single Wheel Maximum Load: 120 (kg) Diameter: Approx. 176mm / 7in Hole Distance: Approx. 37mm / 1.5in Bearing Hole: Approx. 8mm / 0.3in Bearing: 608ZZ Color: Gray Package List: 2 x Wheelchair Front Wheels Note: Due to manual measurement, there is a slight error, thank you for your understanding.