SLiME sealant prevents and repairs flats caused by puncturing objects . SLiME Tube Sealant seals punctures up to 1/8" (3mm). SLiME Tire Sealant seals punctures up to 1/4" (6mm). SLiME’s non-toxic, non-flammable, non-aerosol and water soluble liquid installs into the tire by first removing the valve core and then applying through the valve stem. SLiME works repeatedly to repair new and existing punctures and is guaranteed to perform for up to 2 years!