Precision machined from aircraft grade aluminum, this extra long presta valve extender fits deep-dish and carbon rims from 60mm-90mm. O-ring seal ensures a leak-free fit. BaseMachined Aircraft Aluminum AlloySize (L x W x H)7.5 x 0.7 x 0.7 cm 3" x 0.28" x 0.28"Weight6.4 g / 0.23 ozArt.no.TFV-02