1.Webbing and outer rubber need to match. 2.Specific Surface Materials: polyester TPU, environmental TPU which is wear-resistant, oil-resistant, dirty-resistant and easy to clean. 3.Inside Material: Nylon webbing. 4.Zinc Alloy (Kirsite) Buckle (Buckle can be customized as per your request) is anti-rust and can stand more stronger pulling forces, comparing with the ordinary buckle, advertisement can be added to the buckle. 5.Texture: Aesthetics of the surface is very good. Texture can be customized as per your request.