Review on Valve-Loc Tire Valve Caps: 25-Pack Green Stem Covers for Cars, SUVs, Bikes, Trucks, Motorcycles - Heavy-Duty, Airtight Seal, Easy-Grip Screw-On Use by Brian Piecuch

Perfectly fits the tire nipples. The seal doesn't fit very well and falls out every time I take it off to check tire pressure or inflate the tire. The seal either sticks to the tire valve and then falls off and rolls, or it just falls out and rolls. I probably won't buy it again as a four year supply is now only a year supply.