Features: 1. Application: This anti-collision block is designed for use with trailers to tow caravans or motorhomes (compatible only with towing balls that have a 22mm thick wire rod). 2. Practical Accessory: The anti-collision block helps prevent accidental impacts with the trailer arm, ensuring a safe and reliable experience. 3. Premium Material: Constructed from high-quality rubber, this block is flexible, wear-resistant, and capable of withstanding high temperatures, making it durable and resistant to breakage. 4. Simple Operation: The rubber block is easy to install and requires no cutting or complicated procedures, allowing for convenient use. 5. Long Use Life: Manufactured with professional standards, it offers high performance and strong reliability, ensuring a prolonged lifespan without the need for frequent replacements. Specification: Item Type: Trailer Arm Anti-Collision Block Material: Rubber Hole Diameter: Approx. 22.7mm/0.89in Application: Suitable for towing caravans (only for towing balls with 22mm thick wire rod) Note: The center hole diameter is 22.7mm, making it suitable only for trailer balls with a 22mm thick rod.