Premium Material：The chain with carabiner is made of exceptional stainless steel material, high hardness, smooth surface without burrs, strong and sturdy, corrosion resistance, not easy to rust and can be used for a long time. With 4 Spring Carabiners：4 stainless steel spring carabiners, sturdy and solid, durable and practical. With the spring carabiner, you can easily and safely attach a chain to fixed items. The spring carabiner absorbs the pulling force and ensures a safe and stable connection. Chain Size：Chain thickness: 4mm, inner link width: 8mm, inner link length: 26mm, total chain length: 51cm, maximum working load: 250kg. The hanging chair chain and spring carabiner are 100% solid and extremely sturdy. So you can secure your project with peace of mind, even under heavy load! Packing list: 2 pieces stainless steel hanging chair chain + 4 pieces spring carabiner. All components are made of stainless steel. All items are matched in size and stability and are very flexible to