Durable plastic construction: Made from robust plastic material for longlasting performance and dependable support for your boat or yacht on the trailer. Hull protection with soft rollers: The rollers' soft surface reduces friction and prevents scratches or gouges to the hull during loading, unloading, and transport. pressure tested for reliability: Each roller has been rigorously tested under pressure to resist deformation and damage, ensuring consistent performance under load. Two size options for versatility: Available in two sizes with inner diameters of 67 inches and 0.83 inches to suit a range of boat and trailer setups. Compatible with a variety of boat types and trailer configurations. How this product solves common problems Prevents hull damage: Soft, nonabrasive rollers minimize marks and chips that can occur when a hull contacts hard or worn rollers. Maintains shape under load: pressure testing means the rollers keep their form and function even with repeated launches and longdistance towing. Simplifies handling: Reliable rollers make launching and retrieving quicker and reduce the effort required to center and guide the boat. Practical applications Launching and retrieval at boat ramps: Smoothly guide your boat on and off the trailer without worrying about hull scratches. Longdistance towing: Use the pressuretested rollers to maintain support and shape during extended trips. Offseason storage on the trailer: Protect hull surfaces while the boat remains perched on the trailer. Product notes Material: Robust plastic with a soft outer surface for hull protection. Performance: pressure tested to resist deformation and damage. Sizes: Inner diameters of 67 inches and 0.83 inches. Compatibility: Designed for use with a variety of boats and trailers; select the appropriate size for your setup.