General description Superior raw materials make this metal double head dog traction chain a reliable choice for pet owners. Designed for durability, this heavy-duty latch swing gate has been tested to exceed industry standards, ensuring safety for your pets. Technical specifications XS: 2.5mm thick steel, total length 16 inches, suitable for small dogs S: 3mm wide steel, total length 20 inches, suitable for medium-sized dogs M: 3.0mm wide steel, total length 24 inches L: 4.0mm wide steel, total length 27.5 inches, suitable for large dogs Each chain loop length: 1.0 inch Hard chrome O-ring for leash attachment This chain will not tarnish, rust, or break