Review on Uiuix Puppy Whelping Collars: 5 Record Keeping Charts, 15 Colorful ID Collars, Adjustable Bands for Breeders by Crystal Cornwell

We bought these for our first litter of ten puppies but quickly found that they were not safe. Puppies squirm on top of each other when they're little, and it's so easy one slips his foot in the other's collar. The fear of strangling each other was too great to risk. We thought we would at least use the sheets but unfortunately they proved to be of no use to us either. Each sheet contains a list of all your puppies, but the problem is that no one but the breeders wants or needs details on all the puppies in the litter. So you don't need a bunch of sheets to keep track of all this, you really need one sheet per pup with information about just that pup. You don't get that here. That's $15 I just threw in the trash can.