12 Pack Ribbed Boat Trailer Wobble Rollers, Scratch-Free, Durable, Universal Fit

Set of 12 Ribbed Wobble Rollers for Boat Trailers, Yachts and Marine Use. Product highlights: - Protects boat hulls during launching and retrieval by providing smooth, cushioned contact that minimizes scratches and abrasions. - Self-aligning ribbed wobble design distributes load evenly for stable, low-friction rolling and easier loading onto trailers. - Durable polypropylene (PP) construction offers good impact resistance and long service life under repeated use. - Precision molded for consistent fit and finish; smooth blue surface with no sharp edges for safe handling. - Direct replacement for worn or damaged trailer rollers to restore reliable performance. Key specifications: - Item type: Ribbed wobble roller. - Material: Polypropylene (PP). - Outer diameter: approximately 108 mm / 4.3 inch. - Height: approximately 75 mm / 3.0 inch. - Inner diameter (ID): approximately 19 mm / 0.7 inch. - Color: blue. - Pack contents: 12 x ribbed wobble roller. Typical applications: - Loading and unloading small boats and tenders from trailers at ramps to reduce hull wear and simplify positioning. - Replacing old or broken rollers on boat and yacht trailers to restore smooth transport and launching performance. - Installing on marina cradles or boat lifts to support hulls during short-term storage or positioning. Compatibility and fit: - Suitable for boats, yachts, trailers, and other marine equipment that accept rollers with the listed inner diameter and outer dimensions. Confirm shaft or bolt diameter matches the 19 mm ID before installation. Notes: - Only the items listed in Pack contents are included. Other items shown in images are not included. - Color may vary slightly due to lighting and screen differences. Allowable measurement error is 1 to 3 cm.