Dog Care Soft Handle Dog Bicycle Leash for Dog Bike Exerciser High quality nylon leash and Stainless steel. Size: Metal Length: 17.9 inch, diameter: 0.8inch; Leash length: 22inch and can stretch up to 35 inch; Whole product can stretch up to 55 inch; Color: silver; Weight: 600g. Easy to install and control,it takes you about five to ten minutes for finishing installation. There is an internal shock-absorbing system, which can bear more strength from the dog. Avoiding much danger from tying your pet too close to your bike.