1Function: This block protects the bow of your boat by cushioning during loading and towing, helping to make your boat safer to tow. 2Material: This block is made of rubber material that will not rust or destroy your boat and it can resist to oil, fuel and salt damage. 3Wide Application: Used as a bow for boats or personal watercraft, ideal for replacement parts and accessories for ski boats, fishing boats, sailboat or trailers. 4Ideal Replacement: According to the original model size design, perfect replacement of the old or damaged original model, no need to modify, easy and fast installation. 5Perfect Matching: Made of 1:1 mold casting, high standard alignment, curvature consistent, and carefully polished to avoid affecting the original car function.