Review on GAMUDA Puppy Collars – Soft Nylon Whelping Puppy Collars - Adjustable Litter Collars Pups – Assorted Colors, Reflective & ID Tags - Set of 12 with Record Keeping Charts by Alexis Hughes

We bought these collars for our Labrador litter. They started wearing them around 1 week of age and wore them for up to 8 weeks and they could still be left on and used when needed. I love how easy they were to adjust, we adjusted the collars every 4-5 days and it's quick and easy. Our puppies were busy and active and by 6 weeks most of the bells had fallen off (which didn't really matter to me). The reflective part of the collar also has some wear and tear when the puppies go home. I bet puppies can still wear collars for a few more weeks if their new owners decide to keep the collars. Overall these collars for puppies are very affordable and especially for our labs they are the perfect size to wear from birth up to 8 weeks (or longer if needed). Will definitely buy again if our dog has another litter in the future.