• "Real butyl tubes" made from 100% butyl polymer, unlike other "butyl" tubes, which are blended with butyl polymer and natural rubber
• Each tube is individually boxed with a full range of sizes and valve stem types clearly marked on each box end
• 100% butyl tube minimizes natural air leakage while maintaining air pressure for a longer period of time

PROP 65 WARNING: Cancer and/or reproductive harm - www.P65Warnings.ca.gov