Please note a regular collar should be used for controlling the dog. The dog collar light is a great way to keep your pup highly visible during the night or on low-light environments. The waterproof design ensures that they will be comfortable no matter what you throw at it! Size S 35-42cm M 38-48cm L 40-54cm XL 43-60cm *possible looseness under certain conditions where the dog runs at high speed or when they are particularly large in size. All products come in UPC codes for inventory management and retail packaging so that they can be easily displayed on shelves at stores! +ABOUT CHEERHUNTING Cheerhunting has established themselves as a new brand with their products being carried by 200+ happy independent retailers around the world. We focus on cost-effective wholesale solutions with low minimum requirements to make your life easier when working together. If you have any questions about pricing or shipping feel free to message us on Faire (or zoe@cheerhunting.com)