Thru-collar design uses self-piercing screws to easily go through synthetic and leather collars up to 0.20"/5mm (Which is about 99% of collars. Some doubled up leather or studded collars are too thick). Patent Pending. Fits any width collar or harness. Doesn't dangle. Fits dogs and cats over about 10-12lbs. (Smaller than that, it's pretty big on the neck, but still works). Waterproof, dogs can swim with it. UPDATE 8/1/2022: Upgraded enclosure with even stronger composite body & unbreakable ballistic Nylon6 polyamide backplate. Backed by the Elevation Lab Lifetime Guarantee - If there is ever an issue, we will make it right. The most secure & comfortable AirTag collar mount for dogs and cats.

Best Sellers Rank: See Top 100 in Pet Supplies. Unit Count: 1.00 Count. Target Species: Dog, Cat. Brand: Elevation Lab. Material: Nylon. Pattern: Dog. : B09DR2QNQ5. Manufacturer: Elevation Lab. Date First Available: August 27, 2021. Package Dimensions: 6.38 x 4.41 x 0.59 inches; 1.45 Ounces.