4 Inch Heavy Duty Rubber Mute Spring Loaded Gate Door Wheel Caster Spring Wheel Home Gate Door Roller Material: Metal and rubber 4 inch gate caster with adjustable spring bracket designed to allow gates to open and close freely Features a 50-60kg load rating and a spring-loaded clamp that helps absorb shock when the caster rolls over rough or uneven surfaces Universal mount fits both wood and metal gates Heavy duty spring-loaded gate casters adjust to surrounding terrain to maintain consistent gate height during opening and closing cycles Rotating support works well on both level and uneven exterior surfaces including asphalt, brick, concrete, dirt, grass, gravel, and pavers Color: Black Size: 10cm Package Quantity: 1 Piece