The stans notubes core remover by customer demand the notubes core remover was born it easily fits between the spokes to remove the valve core for addition of sealant without dismounting your tyre stans notubes core remover features can be used to remove the valve core from any schrader valve or from our removable core presta valves use in conjunction with our sealant injector or 2 ounce refill bottle high quality tool is fully cncprimed from 6061 aluminum red anodized a