Super lite, adjustable ID ONLY collar. This collar was designed because dog owners wanted it, we could and it works. the Ultra Lite is designed just like our original "Snickers" collar except it is lighter and thinner for your dogs comfort. Do not let the sleekness confuse you. The Ultra Lite has been tested on all sizes of dogs from toy Yorkie's to Rottweilers and Working Cow Dogs. Being macho and strong is not what this collar is about.. it's about being smart and good design. The Ultra Lite is perfect for dogs who use harnesses, kennel leads and easy pull leads. FYI.. this collar is not chew proof but it is Handmade in the USA.