Review on Tilious 15 Colors Puppy ID Collars: Soft, 🐾 Adjustable & Reusable Collars for Newborn pet Dog Cats by Amber Hickman

I ordered these so we can tell our adopted kittens apart. They're long enough that I was able to use the extra length to give a visual clue as to who's who. Stubborn kittens may dislodge the Velcro, especially if it's not tight or there's an extra piece they can grab onto with their teeth or claws. The collars have lasted long enough for us to know who each kitten is and one of them is still wearing it almost 8 weeks later! I definitely recommend them for identification in litters with similar colors and patterns.