SIZE --- You can choose S size (10ft) and L size (16ft) of traction rope according to your own habits, 10ft of traction rope is suitable for pets up to 22lbs, 16ft of traction rope is suitable for pets up to 33lbs NO TANGLE --- Tangle-free 360 degree swivel leash and easy adjustment of retraction means you don't have to worry about your dogs getting tangled when walking, let your dogs move freely around you. EASY TO USE --- Quick lock, pause and unlock button - easy to use with your thumb. Tangle-free, perfect for walking, jogging, running, camping and hiking, or for a leisurely stroll in the backyard. COMFORTABLE HANDLE --- Ergonomic TPE handle with non-slip surface is easy and safe to grip, provides an enjoyable walking experience with your pets, don't worry about the dog leash hurting your hand. DURABILITY AND SAFETY --- This dog training leash is made of strong nylon, durable and perfectly protects your dogs.