SJZBIN 10PCS Presta Valve Core Bike Replacement Brass Tubeless Core for Tubeless Road MTB Bike for Tubeless Road MTB Bike,Vittoria,w/Stan's, Continental, Kenda and More, SilverProduct name: Reticulated VT-002 French valve core. Product packaging: 10 mesh VT-002 French valve cores. Product material: copper. Features: 1. The use of copper material en..