Diameter: 0.8 cm Length: 40 cm Surface treatment: galvanized Type: type J Quantity: 4 pieces 1. Long lifespan: this product uses a galvanization process to prevent rust, giving it a long lifespan. 2. Solid and durable: this rivet uses rebar, which is more durable and secured more firmly. 3. Widely used: use these fastening rivets to secure your tents, tarps, frames, slides, fences, windbreaks, sheds, and more. 4. Unique design: the tent rivet has a hexagonal handle, and there is a non-slip hook on top of the tent hook, which can better secure the rope and prevent it from falling, providing better grip than the round shape, perfect for stone floors, forests, and grass with good stability and not easy to bend. [French company and brand TECH DISCOUNT]: Our company TECH DISCOUNT manufactures and sells this superior quality product compared to similar products on the market (even if the photos are similar, they are not designed the same way and sellers do not offer the same after-sales services). Each product undergoes strict quality control before shipping, ensuring you receive your product in excellent condition. In case of a quality issue, we will provide a free exchange within 14 days. Shipped from France on the same day as the order and you will receive it as soon as possible (unlike other sellers who cannot guarantee shipping times or who ship from abroad with generally inadequate after-sales service). Our after-sales service will be at your disposal to respond to you effectively. [To other sellers]: This product is sold exclusively under our French brand TECH DISCOUNT. It is prohibited