Williams Cycling Tubeless Presta Valve Stem: 60mm - Pair

Absolute garbage, did not seal the air between the rim and the rim hole and as a result air continuously leaks from the spoke holes in the rim, no matter how hard tightening down on the nut. The valve core wrench they include with the product is an absolute joke, will not unscrew a valve core as it is made of plastic and simply slides around, I ended up destroying one of the valve cores attempting to remove it from the stem using this wrench as it got stuck and I couldnt not remove it easily. Would give a rating of rate 0 stars if possible.