Kenda Butyl Tube 700 x 45-50 PV 48mm - EachStandard . 85mm wall thickness butyl tube LL designates tubes with Low Lead content valve, complying with CPSIA standards for tubes 24 inch and smaller RVC models have removable valve core Individually boxed for store display with easy identification size valve graphics TECH SPECS tire size 700c (29") tire width 45 50mm valve Presta (threaded) length 48mm