PETCEE Pet Dog Nylon Rope Training Leash Small Dog Slip Lead Strap with Adjustable Traction Collar (Black) Material:Super polypropylene,black Size:width 10 mm/0.394inch *Length 160cm/63inch Function:This leading leash can serve as collar,its circumference is very large and can be adjusted freely Charactristic:Made of durable material, great for long-time use. Adjustable harness ensures a comfortable fit Application:Designed for medium to large breed dogs