The Stans No Tubes MTB Tubeless Kit has everything you need to complete your tubeless ready wheelset as well as detailed instructions of how to do it. Stans No Tubes MTB Tubeless Kit Features x1 Pint Sealant – 1 pint of sealant will convert up to 8 MTB tyres. It seals punctures up to 6.5mm virtually instantly. x1 Rim Tape – 10 yard roll of lightweight rim tape, used to make your tubeless rims air tight. Enough to tape 4 MTB rims with a single layer x2 Presta Valves – Valve stems with removable valve cores. Fits up to 8mm valve hole.