This CNC machined 4-in-1 spoke wrench and valve extender tool can restore a wheel knocked out of true and change a valve extender during a flat repair.4-in-1: 3 spoke nipple tools and 1 valve extender tool3.23mm (0.127) slot fits many DT Swiss Marwi Edco and Wheelsmith square nipples3.3mm (0.130) slot fits 15G square nipples3.45mm (0.136) slot fits 14G square nipplesFits the 5mm standard for valve extenders on long-valve presta inner tubes and tubeless presta valve wheelsHardened CRV tool steel maintains precision edges for a lifetimeLimited Lifetime Warranty