Mesinton 4foot Long Round Leather Dog Leash Collar with Padded Handle,Canine (K9) Training Lead,Walking and Running Medium and Large Dog Breeds Easy to use It's very easy to take on and off through buckles.you can also use the puncher to change the size to suitable your pet. Suitable for Large and Medium-size dogs, training dogs,STRONG AND DURABLE Heavy duty 1.5cm thickness round chain. Total length 1.3M,Neck 42-52cm adjustable. Suitable for 20-40kgs' dogs. Professional dog walking/training leash,double layers design