Details The (R)evolution(TM) Dog Collar is a durable, adjustable collar woven from 100% recycled plastic bottles - keeping old waste in use and out of landfills. It&';s fitted with aluminum hardware and is recommended for dogs up to 50 pounds. Every product purchased cleans a pound of trash from the environment. 100% recycled polyester Small: 8"-12" L, 20mm W Large: 12"-20" L, 25mm W Spot clean Made responsibly in Vietnam