It’s that time of year when you need all the slime you can get! My kids ride their bikes daily, so we are always sliming up their bikes. Walmart has the Slime Tire Sealant Tire Pressure Monitoring System Safe 24oz on sale for only $4.04! (Reg. $9.75) When a puncture occurs, our patented sealant is carried directly to the source. The pressure of the escaping air forces the particles into the opening, where they build up and intertwine to form a long-lasting, flexible plug. Instantly, air loss is blocked and a flat tire is prevented.