Dog running traction set four piece set Traction rope: 130cm in length, 173cm in maximum Waistband circumference: 78-98cm Square package size: 18 * 9 * 5.5cm; round package: 13 * 7cm diameter. Adjustable Design- With this hands Free dog leash belt, you can freely share your happy hours by phone or read newspaper without feeling restrained by your dog. Portable Pockets - Easily put sundries like dog snacks, cards, keys, power bank, cables or your cellphone.One is shrink type pocket, another is zipper type pocket with two places. Health Protection- Dog running leash stretches up to 173CM . Bungees construction can absorb all jerks and lunges from all dogs or cats up to 20KG, reducing back strain and the risk of getting hurt. Night Safety - With the reflective stitching for added visibility, extra safety is offered in hands free dog leash for running at night during the car or bicycle passing.