Slime 2061-A Single Cylinder Foot Pump Single cylinder foot pump inflates bike tires and balls quickly and easily SLIME has been the world's safest and most effective sealant. When a puncture occurs, our patented sealant is carried directly to the puncture The pressure of the escaping air forces the Fibro-Seal particles into the opening, where they build up and intertwine to form a long-lasting, flexible plug