The Anti-Shock Leash employs an elastic material that allows the leash to stretch. This tension-reducing feature is designed to mitigate stress and strain to your dog and to yourself, reducing pain and injury to the dog’s neck while also lowering stress to your joints. The flexibility also makes it easier, safer and more comfortable to train your friend. In addition, the Anti-Shock Leash comes with a “Comfort Grip” Handle hat is made with a pliable material that is ergonomic and easy to grip. The leash uses our famous nickel-free snap hook which is coated in triple silver alloy. The metal elements and fittings are strongly welded to provide stability and do not bend easily. It is backed with neoprene for durability and is easy to clean. All seams are double-stitched to provide the highest level of security.