12PCS Fluorescent Car Tire Valve Stem Caps, Auto Corrosion Resistant Wheel Valve Cover, Luminous Illuminated Glow in The Dark, Car Decor Accessories Universal for SUV, Trucks, Car (Red(1))

These don't glow on their own! you have to shine a flashlight on them for a while for it to glow. I wish the listing would've told me that. Also during the day they look bulky and ugly.

The Luminous Tire Valve Stem Caps are such a fun and practical addition to my car! These 12PC caps not only add a unique glow to my vehicle but also serve as a great safety feature, making my car more visible at night. The glow is bright and lasts a good while after dark, which is a nice touch!The quality is excellent—the caps are durable, easy to install, and stay securely in place. They're made from high-quality materials, so I’m confident they’ll hold up over time. I’ve gotten so many compliments on how they look!If you want to personalize your car and add a little extra flair, these valve stem caps are the way to go. Highly recommend them!

Not luminous at all. Can't even see them in the dark. Huge disappointment. Don't waste your money.

For all ppl confused on how glow in the dark works you have to activate them so if there not glowing out then under a black light for 10 minutes and they will even glow in the light they will even glow if you cover them just a little with your hand mine are GREAT

Do not glow at all

They fit great but in the Florida sun the glow didn't last long

In or around August 2024 bought this set.. now it’s January and they ARE really really nice looking.. so one front yellow light half went out.. so I ordered this set.. so if anything else goes out I’ll have a spare.. well now in January one of the other lights go out.. wish I’d never gotten them.. cause they are real cute.. but get an xtra set or two.

-5 STARS. I read the reviews. Bought them anyway. Thought if they last a couple of hours into dusk, that would still be a beneficial safety feature. When they arrived, I put them under a very bright light for six hours. Then took them into a pitch black room. They glowed. But it was very, very, very weak. No way you'd see it on the road. Thought I'd let one soak in the sun all day and see if it was different. When I crewed it onto the valve stem, it came apart in two pieces. Inside piece screwed on like a normal valve stem cover. Outside piece was friction-fit sheath that quite possibly would come off over time with road vibrations. Pretty much useless. Seriously - do not buy.