Xmomx 4 PCs No Tube Tubeless Valve Stem Core Copper Presta Universal with Red Metal and Black Plastic Bike Bicycle Road Racing Coloured Valve Cap Dust Covers

Features:
1) This Tubeless Valve Stem could help you save a tire on the bike
2) Removable tubeless valve stem allows you to add tubeless sealant
3) Fits round rubber base and suits most mountain bike
4) Core Material: Copper
5) No leaking with high quality base on over 2-year study

Specifications:
1. Core Material: Copper
2. Color: Metal
3. Size: 4.4cm / 1.73in

Package includes:
4 x Tubeless Valve Stem
4 x Red Metal Valve Caps
4 x Black Plastic Valve Caps