Ribbed Wobble Roller — Durable PP replacement roller Size: 108mm x 75mm x 19mm (4.25' x 2.95' x 0.74') Key benefits Protects your boat hull during launching and retrieval: the ribbed surface reduces direct contact and prevents scratching or abrasion while guiding the hull onto the trailer. Smooth, stable loading: the wobble design helps the hull track into position and reduces sticking or sudden shifts, making trailer loading faster and safer. Longlasting reliability: manufactured from quality polypropylene with temperature resistance and sturdy construction, this roller resists cracking and wear for extended use. Easy replacement: engineered to match the original part's form and function so you can swap it in for an old or broken roller without complicated modifications. Features and performance Material: quality PP (polypropylene) — durable, impact resistant, and temperature tolerant. Design: ribbed wobble surface provides better contact and gentle guidance for hulls while minimizing pressure points. Manufacturing: precisionmade for consistent, stable performance and dependable operation under typical trailer use. Compatibility and sizing Dimensions: 108mm x 75mm x 19mm (4.25' x 2.95' x 0.74'). Applicable to boats, yachts, trailers and similar marine trailer setups as a direct replacement part. Typical use scenarios Replacing a worn or damaged roller on a boat trailer to restore smooth launching and prevent hull damage. Assisting in loading a small fishing boat or skiff onto a trailer at the ramp for easier retrieval. Upgrading trailer rollers during routine maintenance for a yacht or larger vessel's trailer to ensure consistent, reliable performance. Installation notes Designed as a direct replacement; verify dimensions against your existing roller before installation. Inspect mounting hardware and brackets during replacement (hardware not included).