6/12pcs Bicycle Removable Presta Valve Core CNC FV Bike Replacement Brass Tubeless Core Remover Tool for Road MTB Bike

- As service parts for Presta valve with removable core, - Choice material & accurately CNC-machined; - Grid-textured head casing for stable performance; - Comes with optional tool for easy service operation; - Material: Mainly Brass, alloy; - Use: for Presta valve with removable core;