Blueberry Pet 3/8-Inch Reflective Basic Polyester Nylon Puppy Dog Collar, X-Small, Medium Turquoise X-Small Width 3/8", Neck 7.5-10" The dog collars in the first main picture are sold separately; And their matching leashes are also sold separately to complete the look Nylon fabric with high density webbing to add durability;The nickel coded Dring for long last Those buckles are made from ecofriendly plastic Picture was taken from a size Medium (Width 3/4", Neck 14.5-20")