4 Inch Heavy Duty Rubber Mute Spring Loaded Gate Door Wheel Caster Spring Wheel Home Gate Door RollerMaterial: Metal and rubber. 4 inch Gate Caster with Adjustable Spring Bracket is designed to allow gates to open and close freely. ;It features a 50-60kg load rating and a spring-loaded clamp that acts as a when the caster is rolling over rough or uneven surfaces. ;It also features a universal mount for wood or metal gates.Heavy Duty spring-loaded gate casters adjust with surrounding terrain to maintain gate height throughout the opening and closing cycles. ;These rotating supports work equally well on level and uneven exterior surfaces such as asphalt, brick, concrete, dirt, grass, gravel and pavers.Colour: BlackSize: 10cmDelivery Quantity: 1 PieceWhen shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it