Fangrui Product Details : 1. Wide Application: Ribbed Wobble Roller Is A Universal Accessories, Applicable To Various Situations, Such As Boats, Yachts, Trailer And Much More To Better Meet Your Needs. 2. Excellent Function: The Ribbed Wobble Roller Is Especially Designed To Help You In Loading Your Boat Onto Your Trailer While Not Scratching Or Damaging Your Boat, Highly Practical. 3. Durable Construction: Boat Ribbed Wobble Roller Is Made From Superior Pp Material, Sturdy And Durable, High Temperature Resistant, Not Easy To Break, Long Lasting To Use. 4. Exquisite Workmanship: Ribbed Wobble Roller Is Produced With 108x75x19mm Size With High Accuracy Process For Fit, Blue Appearance Is Pretty And Smooth Without Burrs. 5. Great : Wobble Roller After Elaborate Manufacturing Technology, Delivering High Reliability And Stable Performance, Direct For The Old Or Broken One. Product Description Specification: Item Type: Ribbed Wobble Roller Material: Pp Od: Approx. 108mm/4.3in Height: Approx. 75