1、SOLID REPLACEMENT WHEEL: The tire part is made of rubber material, bearing type 6001, the wheel is strong and explosion proof, no need for inflation, excellent and durable 2、NON SLIP AND SAFE: Tire surface texture is wear resistant, with good non slip effect, and high safety factor 3、STABLE AND ELASTIC: Rubber tri wheel is made of elastic rubber material, suitable for all kinds of road surface, with stable performance 4、300lb BEARING CAPACITY: Heavy climbing triangular wheel adopt galvanized iron bracket, surface with galvanized coating treatment, not easy to rust, more robust with strong bearing capacity 5、VERSATILE USAGE: This stair climbing wheel is suitable for various applications, including transporting goods, moving heavy objects, and even overcoming obstacles like stairs, curbs, and uneven terrain 1 x Stair Climbing Wheel Item Type: Stair Climbing WheelMaterial: Rubber and ABSIndividual Wheel Size(diameter x width): Approx. 160 x 40mm / 6.3 x 1.57inLoad Capacity: 300lb