Material: High Quality: This dog training collar is made of high quality stainless steel. It will not rust, fade, tarnish or crack 5 sizes: 3.5mm x 60cm Fully welded links are certified for increased durability. Ideal for smooth control: it corrects unwanted dog behavior and stops pulling. Stylish personality design: obedience or walking collar. P training collar for exercising and training your pet, safe to use. Size measurement: Please use a soft measuring tape to measure the circumference of the dog’s neck or waist. widest part of the head, the leash is preferably 3 to 4 inches longer than the size of the dog’s neck. (For example, a dog’s head and neck are 16 inches and the appropriate chain size is 20 inches
