Reliable materials: Made from tire grade solid rubber and strong steel, these gate casters are designed for outdoor durability and longlasting performance. Supports heavy loads: Capable of supporting a maximum weight of 500 pounds, these casters help maintain gate stability by preventing sagging and easing stress on hinges. Adjustable compatibility: With a 6inch wheel diameter and an adjustable U bolt, these casters fit gate frames between 1 5/8 to 2 inches wide, accommodating various installations. Use scenarios Residential driveway gate: Install these casters to reduce hinge wear and gate sag on regular access gates exposed to weather and vehicle movement. Farm or barn gate: Ideal for rugged outdoor settings where gates are frequently used and heavy, providing stable operation and longer hinge life. Commercial property gate: Suitable for gates with frames that measure 1 5/8 to 2 inches wide, enabling quick installations for yard, warehouse, or facility entrances.