Description: Made by plastic material : Rustproof and anti-corrosion. The Shock cord hook is pushed on to the elastic cord and is secured by use of a plastic sleeve. This hook has been designed for use with 5mm dia. shock cord, elastic cord / rope. Exceptionally strong and easy to assemble, total length is approx. 5 cm/1.97 inch. Allows you to make super strong straps of any size or attach to an end etc. Specification: Material: Plastic Color: Blue Size: Total Length: Approx. 5cm/1.97inch Hole Dia. Approx. 5mm/0.2inch To assemble the product: 1. Thread the sleeve on to the shock cord. 2. Push the shock cord inside the hook as far as it will go. 3. Pull the sleeve over the hook, thereby capturing the shock cord. When tension is applied to the assembly lock firmly into the cord. Package Includes: 20 Pcs Shock Cord Hooks(4 Pack) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may -2mm error in size.