What are the advantages of this product? High zinc rate 100g/m2, higher than standard material. Tube diameter of 32mm, chain link diameter of 2.3mm.More firm and durable. Passing 24 hours salt spray test. Pre-assembled gate, easy to assemble for one person in less than one hour. Galvanization and powder coating anti- rust for years. Round corner, chain link ends, lockable door design, conveniently and safety. 60x60mm chain link rolling design, to prevent pet stuck injuries effectively.