Heavy Duty Farm Gate Caster: This long lasting outdoor gate caster supports up to 500 lbs with its 6' solid rubber wheel and sturdy steel construction, helping to prevent gate sagging and extend hinge life for smooth operation on various surfaces. Adjustable Installation System: Features adjustable steel Ubolts that fit round fence pipes from 15/8' to 2' diameter. Includes washers and nuts for easy, secure attachment to your existing gate frame. Weather Resistant Construction: Black coated with a hotdip electroplating process for erosion resistance and rust protection, making these metal swing gate wheels suitable for long term outdoor use in all weather conditions. Lift Assistance Design: With 83/4' clearance from wheel bottom to pipe mast center, these heavy duty farm training wheels help lift your gate, reducing ground drag and providing smoother movement across different terrains. 23 use scenarios Rural farm gate on gravel or uneven surfaces: reduces sag and eases opening and closing by supporting heavy gates that tend to drag on the ground. Barn or ranch perimeter gates used by vehicles and livestock: improves gate movement and lifespan by minimizing hinge stress on rough, outdoor terrain. Property gates that require frequent moving or repositioning: the adjustable pipe fit and lift assist reduce effort and ensure stable operation across varying ground conditions.