1.12 expansion rings, 6mm elastic band and spiral hook, the total length of the rubber tensioner extension hook is 18cm - including the hook.2. Material: PP latex and rubber, 3.2mm steel plastic coated spiral hook, elastic band diameter 6mm, color: black3. Due to its high quality, the expansion hook is stable, durable, and weather resistant4. The extension ring is very suitable for quickly and easily fixing advertising banners, tarpaulins, tents, posters, or pavilions, trampolines, trucks, trailers, or sun sails5. Expansion hook, tent supplies, replacement rubber, tent tensioner, tent hook, rubber ring, rubber ring with spiral hook. The hook is firmly connected to the elastic band and is not easy to separate. Color: Red, Green, Yellow (optional) Package includes: 12 * elastic hook Attention: 1. Due to manual measurement, please allow for minor errors. Please ensure that you do not mind before bidding. 2. Colors may vary depending on the monitor, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/email without a name, etc.) is incorrect, the order will not be delivered correctly