This kit includes everything you need to replace the inner tubes in your tubeless ready rims and tires with genuine Stan's sealant--the original, and still the best tubeless tire sealant.Features:- Everything you need to quickly and easily complete your conversion to tubeless- Stan's Sealant seals punctures up to 6.5mm (1/4´´) quickly and offers long-lasting protection- 44mm brass valves feature removable valve core for easy sealant refresh and fit most mountain rims- Yellow Tape helps seal spoke holes airtight and does not allow liquid to pass, keeping rim interior dry- 200ml of sealant provides enough liquid to seal two 29 wheels with larger volume tires.How does it work:- Our simple tubeless system begins with our Yellow Tape. Unlike some tapes that allow moisture to pass through them and into the rim cavity, creating a mess of glue and liquid that can corrode rims, Stan's Yellow Tape forms a non-permeable vapor barrier for airtight protection.- Our tried-and-true tubeless valves offer simple, tool-free installation, with removable valve cores to allow for easier sealant refreshes.- Stan's sealant stays liquid in your tire, ready to seal a sudden puncture almost instantly, while letting you ride faster, and with more traction and control. Stan's sealant lets you ride further, faster, and flat-free.