1、Robust Constructure: Crafted from solid rubber tires and sturdy steel, with exceptional load bearing capacity. Features a black powder coated surface and hot dip galvanizing for long lasting outdoor use. 2、Heavy Duty 6in Gate Caster: 6in gate caster supports up to 500 pounds, preventing gate sagging and preserving hinge integrity. Ideal for gates weighing up to 500 pounds. 3、Adjustable Steel U Bolt Design: 6in gate support wheel with adjustable steel U bolt, suitable for 1 5/8in to 2in round fence pipes. Securely fasten the wheel to the gate bottom pipe using provided washers and nuts for stability. 4、Multi Surface Rollability: Robust rubber gate wheel suitable for rolling on concrete, grass, and gravel surfaces. For smoother rolling on softer surfaces like pea gravel, we recommend placing a supportive base under the wheel. 5、Ideal Replacement: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the gate moving performance! Item Type: Fence Gate Wheel Material: High Carbon Steel, Rubber Wheel Feature: Shock absorption Wheel Material: Rubber Mounting Method: Bolt hole type Single Wheel Load Capacity: 500 LBS Wheel Diameter: Approx. 15.24cm / 6in 1 x Fence Gate Wheel 1 x U Shaped Bolt