Review on 🚗 Gold Bling Aluminum Valve Stem Caps - 4PCS Anti-Theft Dust-Proof Car Tire Valve Stems Cover for Auto Wheels Tyre with Colored Design by Pat Nard

They have great workmanship and a premium feel. They also look great installed. As for safety, it's not 100%. If the outer sleeve had a swim ring and couldn't unscrew the cap, then it would be anti-theft. They can still come loose by hand or if someone just uses channel locks or pliers.