Description: Size: Boat Trailer Bow Roller Fits 3.5 inch wide center roller bracket. Overall width: 180mm/7.09inch.Quality Material: Boat trailer roller is made of high quality polyurethane, wear resistant, durable. Purpose: Poly bow roller is designed to support the weight of your boats on the trailer, absorb road vibrations and are non marking. Protective Roller: Boat trailer guide wheels make launching your boat easy and protect your boat from knocks and scratches. Good Workmanship: Multi functional marine wheel, good load bearing, meticulous workmanship. They rotate freely reducing drag while launching or retrieving your boat. Specification: Material: PU Size Chart: Overall:18cmx13cm/7.09inchx5.12inch Package Includes: 1Boat Trailer Bow Roller Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia