Features: brand new and high quality Easy installation or removal: This dog bike leash can be easily disconnected from a bike by screwing and unscrewing in seconds, allows you to unscrew the leash effortlessly, for any kind of bike. Keeps your dog safe: The flexible leash lets your dog set the pace for the ride so you'll for always know you're going the right speed. The 15" guide pole keeps him a safety distance away from the wheels and gives him plenty of room to run alongside. No worry about your dog sudden jerking movements: A shock-absorbing system allows you to maintain control while riding without the effects of your dog. Package Includes: 1 extension rod, 1 belt, and 1 hex-wrench. Replaceable Leash: You can replace the leash with a new one which you think may be more suitable in length or when the old one going tear. Specifications: Material: Steel Pipe, Nylon Color: Black Size:Approx. Rod Length 42.5cm/16.73in, Strap Length 68cm/26.77in (Elastic Part Straightened 84cm/33.07in) Weight: Approx.650g Package Includes: 1 Piece Extension Rod 1 Piece Belt 1 Piece Hex-Wrench note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!