The Park Tool Valve Core Tool VC-1 is a compact and practical tool crafted for the efficient removal and installation of Schrader and Presta valve cores. This tool is particularly useful for setting up tubeless tires, replacing damaged or leaking valve cores, and quickly deflating large-volume tires. Its design also accommodates Presta valve extenders with 5 mm wrench flats, making it a versatile addition to any cyclist's toolkit. Designed for easy removal and installation of Schrader and Presta valve cores Compatible with Presta valve extenders featuring 5 mm wrench flats Ideal for setting up tubeless tires and replacing faulty valve cores Facilitates rapid deflation of large-volume tires