16PCS Adjustable Nylon Puppy Collars, Breakaway Buckle ID Collars

【16 Distinct Colours】This puppy collar set contains 16 pieces in different bright solid colours. Obvious colour differences allow you to easily distinguish puppies with similar looks from the same litter. 【Soft Nylon Construction】Made of soft nylon material, these collars are washable, colourfast and reusable. The tough webbing stands up to daily puppy play, and the gentle surface ensures comfort on puppy’s neck. 【Adjustable Fit】The S Size strap fits neck girth between 6.8 - 10.2 inches (17.3 - 25.9 cm); M Size fits neck girth between 9 - 12 inches (22.9- 30.5 cm), which also works for other small pets within this size range. The built-in metal D ring is only designed for hanging ID tags and cannot be matched with leashes. 【Breakaway Safety Buckle】The clasp automatically releases under pulling force when the puppy gets caught on objects. It maintains tight fastening against normal scratching and daily activities, and only opens under proper tension to ensure a secure release. 【Tips】Do not fasten the collar excessively tight. Puppies grow at a fast pace, so leaving appropriate slack avoids discomfort and restriction on neck development.