ValvecapperPRO Cap and Core Remover/Installer is designed by a trucker to make a difficult job easier. Longer valve cap grip works on flow-through, double seal valve caps. No more dropped caps - holds onto caps and valve cores for removal and replacement. At 11-3/4" it has enough reach to get the job done. Unbreakable under normal use. Designed for use on metal and plastic valve caps.