This revolutionary ‘Joes No Flats Super Sealant Universal Tubeless Kit’ is an essential for any cyclist. It will convert any mountain bike wheel into tubeless which is a safe conversion process that’s important for any dedicated riders. This is one of the quickest and easier to use and contains micro-sealing particles to quickly find and seal any irregularities in the rim or tyre. It will instantly seal punctures in the tread up to 6mm that will be permanent. It’s one size that will fit all rims of any size, whether this is 26 or 29 inches. This kit contains a unique tear and fits rubber rim strip and all the components you need to convert two wheels to be tubeless. Specifications For two 26, 27.5 and 29-inch mountain bike wheels Fits rims with Presta valve hole openings Dimensions: H25 X W10 X D20cm Guarantee: 1 year What’s Included 240ml Joe’s Super sealant, with micro-sealing particles 2x tubeless Presta valves with removable cores 1x roll of nylon rim tape for 2 wheels 1x valve key for easy removal of the core 1x spare Presta valve core 1x Presta to Schrader adapter