The j-hooks are used with 0.5cm thick bungee cord. You can fix the bungee cord with the j-hooks on the spot of your choice. Features: 6 nylon j-hooks and 6 stainless steel screws. Lightweight and easy to carry. It is used with 0.5cm thick bungee cord. Fix the bungee cord with the j-hooks on the spot of your choice. Good accessories for the kayaks, boats and canoes. Specifications: Material: Nylon + Stainless steel Size: 2.6 * 1.6 * 1cm / 1.02 * 0.63 * 0.39in Weight: 30g / 1.06oz Package Size: 15 * 11 * 1cm / 5.91 * 4.33 * 0.39in Package Weight: 33g / 1.16oz Package List: 6 * J-Hooks 6 * Screws Notes: 1, Please allow 1 - 2cm (0.4 - 0.8") differences due to manual measurement, thanks. 2, The listing just includes 6 hooks and 6 screws only, other items(if any) are Not included in it.