These newborn pup whelping id collars are individually handmade by my 14 year old daughter in her spare time.. 🐶 Will aid in the ID of newborn pups and kittens 🐶 100% Australian handmade by me 🐶 Lightweight, easy to use slide knot system 🐶 Size adjustable as puppy or kitten grows 🐶 Soft on puppies or kittens necks 🐶 Environmentally friendly 🐶 Resuable 🐶 Washable 🐶 4 sizes available 🐶 Lots of colours (I will choose 12 different colours for each order) 🐈 12 x Extra Small - Kitten Size (9cm-15cm) 🐶 12 x Small (12cm-22cm) 🐶 12 x Med (15cm-30cm) 🐶 12 x Lge (18cm-36cm) 🐶 12 x Small & 12 x Medium Bundle 🐶 12 x Small, 12 x Medium & 12 x Large Bundle If you require a custom size please contact me. A lot of work goes into making her Whelping Collars, they are a quality handmade product, handcrafted at Mount Prospect in Victoria, Australia.