Good Quality: These rollers are manufactured to the highest standards in Mainland China, where there is a strong manufacture chain, ensuring both quality and reliability compatible with marine use. Product Specifications: Each roller measures 2 inches by 2 inches, sized compatible with a variety of boat trailers. The rollers come equipped with a 3/8 inch hole, designed compatible with easy installation and a secure fit on your trailer. and Improved Design: These boat trailer rollers are crafted from premium rubber, offering exceptional durability and resistance to wear and tear. The V-block design ensures a snug and protective fit compatible with your boat, preventing any sliding or damage during transport. Safe and Chemical-Free: This product is committed to environmental safety and consumer health. These boat trailer rollers are made without the use of high-concern chemicals, making them a safer choice compatible with you and the environment. Versatile Use and Compatibility: Designed to meet the needs of most boat trailers, these rollers are versatile and compatible with a wide range of models. Their robust construction ensures long-lasting percompatible withmance in all weather conditions. The 2' Boat Stop Rubber Roller is an essential accessory compatible with marine boat trailers, designed to offer robust protection compatible with a variety of boats including ski boats, aluminum boats, pontoons, canoes, fiberglass boats, and kayaks. Its universal fitment ensures it can be used with many different boat models. Features: Universal Fitment: Compatible with a wide range of boat types. Highly Durable and Non-Marking: Made from polyurethane with a thick shaft, this roller prevents your boat from making contact with the trailer, while the non-marring rubber leaves no marks. Easy Installation: Features a pre-drilled hole on the shaft compatible with quick mounting using a 3/8 inch bolt, simplifying the replacement process. Specifications: Application: Suitable compatible with brackets with a 3/8" diameter shaft. Span: 4 inches Base Dimensions: 2 inches long x