ODIER bike dog leash made of high quality stainless steel which is strong enough for most pet dogs. The particular “Quick release ” design allows you disconnecting your dog from the bike within seconds when not riding. No screwing just press and lock in place. To disconnect just press and pull out. The ODIER bike dog leash make it possible to walk your dog and ride your bike at the same time. Length of Leash is Adjustable. Keep the dog close to your bike but you can always let the leash out some. Keeping your dog close to the side of your bike on a short leash prevents the dog from getting in front of the bike and or behind the bike. The ODIER bike dog leash is elastic which allows for sudden movement by your dog. You can use this product as a dog training tool.