Donation: Each month, based on the sales, we donate large amount of dog collars to local dog rescues in Mile High City based on their needs. Your purchase will help our efforts SIZE: Dog collar for small dogs:( Width 5/8", Neck range 11"-15"), Dog collar for medium dogs:(Width 3/4", Neck range 13"-17"),Dog collar for large dogs:( Width 1", Neck range 15"-19") MATERIAL: Mile High Life Puppy Collars feature soft poly cotton webbing with vibrant wave, plaid and line patterns, lightweight durable buckle and strong gunmetal d-ring. Convenient and fast safety buckle will be more suitable for your dog. COLORS: Black/White Wave, Black/White Plaid, Green Wave, Gray/Green, Pink Dot NOTE: Please measure your puppy's neck based on our SIZE chart, set aside 1 inch more to give more cushion Our Dog Collar is the perfect gift for your best friend! Here’s why: ► Durable Made with Nylon and Cotton, our set is strong and will most attempts to chew through! ► Beautiful Designs Blue/red cute patterns look very cute on your puppies! ► Adjustable Adjust the straps for a more comfortable fit! ► Different Sizes Available However big your little friend is, we have three size ranges available for them to wear! Please use our illustration to figure out the best sizing to purchase ► Here To Help We understand that you might purchase the wrong size for your dog, if this happens, please contact us and we will help you out!