With the Ultimate Tubeless Kit from Muc-Off, you immediately have everything you need to make your wheelset completely tubeless! Tubeless Valves The new lightweight tubeless valves from Muc-Off are made of high quality and strong 7075 aluminium and make inflating your tyres even easier, thanks to the special airflow system. The included core remover makes it easy to run sealant through your valve into your tyre. No Puncture Hassle Sealant This set comes with two bags of Muc-Off lightweight sealant, which fills a puncture up to 6 mm easily and quickly. Plus, the UV dye makes it easy to detect a leak. The bag has a capacity of 140 ml, enough for even the widest mountain bike tyres, and fits seamlessly onto the tubeless valve for ultimate convenience.