Easy to Use Install: Sea kayak deck rope clip, fixed With two screws, easy to install and use. High Quality Material: This boat mooring device is made of high quality nylon material, rust-proof, high strength and durable. Material Type: high impact nylon, one-step forming, workmanship stable, no rust, wear-resistant. Salt water, with mounting hole. Function: Fixed clamp (sliding clamp) for securing ropes and ropes, for transportation and boating. Dimensions: clamp size 100mm, inter-hole distance 28mm, height 13mm, base length 53MM.