Review on GODESON Black Car Tire Valve Stems Cap Bullet Style, 4 Pcs/Set, Aluminum Tire Wheel Stem Air Valve Caps for 8V1 US Schrader Valve - Dustproof Caps by Joel Norfork

I wore them when I took the car to the dealer. I won't leave it for everyday use because where I live they even take small cheap black beanies on the plane. They look good and have the usual black plastic inserts in nice aluminum lids. No problems so far and I don't see any reason for problems, or maybe if you tighten the caps on the bars and the black insert sticks to the cover and turns inside. I tighten them gently and loosely with just enough torque to keep them on the valve stem.