?Multiple Applications? This metal dog collar has good shine, which can decorate your dog and make him look beautiful and cool. ?GREAT FOR TRAINING? Good design for training and other daily activities. This collar uses seamless welding, is flexible, and can be adjusted freely. It is ideal for gentle control that will force your pet to obey or walk. ?Measuring size? Please use a tape measure to measure the circumference of the soft dog's neck or the widest part of the head, and the dog chain is better 5–8 cm longer than the size of the neck of the dog. dog. (ex. Dog head / neck size is 42cm, chain size suitable for dog is 50cm). ?4 SIZES AVAILABLE? Size chart: S-S: 2.5mm x 50cm, M-3.0mm x 55cm, L-3.5mm x 60cm, XL-4.0mm x 65cm. ?MATERIAL? Made of high quality stainless steel and chrome plated, for durability and rust resistance. Links resistant chain links.