BLACK MARINE GRADE BOAT TRAILER BUNK RUNNER BOARD CARPET Trailer Bunk Padding, The material is polyester. BLACK MARINE GRADE BOAT TRAILER BUNK RUNNER BOARD CARPET Trailer Bunk Padding, the weight is 700GSM BLACK MARINE GRADE BOAT TRAILER BUNK RUNNER BOARD CARPET Trailer Bunk Padding, the size is 12inch X 13 feet