Won`t plug valves Won`t clog pumps Cleans up with water Does not ball up or dry out in the tube or tire No pre-fill mixing necessary Seals punctures as you ride Nonpoisonous & environmentally safe *Recommended for use in tubes only - Mr Tuffy sealant can be used in true UST applications using a UST rated tire, but is not compatible with tubeless conversions and non-UST tires 8oz Tube Only