Feature: 1. Wide Application: Ribbed wobble roller is a universal accessory, applicable to boats, yachts, trailers, and more, to better meet your needs. 2. Excellent Function: The ribbed wobble roller is specially designed to assist in loading your boat onto the trailer without scratching or damaging it, making it highly practical. 3. Construction: The boat ribbed wobble roller is made from superior PP material, sturdy, heat-resistant, not easy to break, and long-lasting. 4. Exquisite Workmanship: The ribbed wobble roller measures 108x75x19mm and is manufactured with high precision. The blue finish is smooth, attractive, and free of burrs. 5. Great Replacement: The wobble roller is produced using advanced manufacturing techniques, ensuring high reliability and stable performance. It is a direct replacement for old or damaged rollers. Specification: Item Type: Ribbed Wobble Roller Material: PP OD: 108mm / 4.3in Height: 75mm / 3.0in ID: 19mm / 0.7in Application: Boats, yachts, trailers, etc. Color: Blue Package Contents: 4 x Ribbed Wobble Roller Note: Light reflection and different display settings may cause slight variations in the color of the item in the picture compared to the actual product. Measurement allows an error of +/- 1-3cm.