Small - 12 to 18" | Width - 1" ||| Medium - 18 to 22" | Width - 1" ||| Large - 22 to 28" | Width - 1."Collars are much gentler form of correction than choke collars. They are used and recommended by top trainers all over the world.More comfortable than standard collars.Prevents escaping when fitted properly. Leash Lenth 130 cm. We designed this amazing dog collar to make your dog feel comfortable and at the same time, to resist its strong pulling force. The collar has a super sturdy structure and heavy-duty metal elements which can withstand even more energetic dogs.PREMIUM QUALITY NYLON: This heavy-duty collar is made with premium quality nylon. This material has increased durability and flexibility, thanks to its thickness and reinforced stitches, which makes our collars pass any test of resistance.