BCM Plastics Colored Bicycle Presta Valve Caps/Bicycle Dust Caps (12 Count Bag Lime)

They work! Thread tight and keep dirt out of the valve stem. Color on Amazon site is accurate. Look great on my Catrike Expedition recumbent. Just be sure to not overtighten the caps. The stem will push through the top if you do. But with plenty of replacements. It wasn't a big deal. Just snug them down and you're good to go!

Pricey, but colors look cool on the bike. Good quality.

Colorful + light + cheap + plentiful = happy me! Fits tightly on the presta stem and have not loosened or cracked. Would buy again!

Cheap....so far breaks about every 3rd time they’re taken off to air the tire. Prob take the whole bag to last the summer!

Great product! Matches my bike color perfectly!

they look sick and I am so much faster with these on my valve stems.

Excellent, Great color, a little pricy but they are of great quality.

My life was empty and sad before I installed this part on my bike. Now my evil boss has decided to send me on a paid vacation and women like me again. This is a good reason to buy American.

They function and are coloured as shown.

Product looks and functions exactly as advertised.