Adventure Time BMO Faces Adjustable Nylon Dog Collar Soft and durable nylon webbing Heavy-duty chrome-plated hardware Rubber character charm included Medium: Adjusts from 12-16", 1" wide Doggies like Adventure Time too! Your best friend deserves his or her own light-green Adventure Time BMO Faces Dog Collar that features Game Boy-like character BMO. Also, be sure to get your matching Adventure Time BMO Faces Dog Leash (sold separately)!