Not happy with this purchase. Valve stem caps don't even cover the whole thread of factory value stem. Wouldn't have purchased if I knew this, don't even know why they would sell them if they don't screw all the way down to cover all threads?
NOTE FROM STG: the valve stem caps need to be long enough to allow the cap to thread down low enough to keep it on the stem securely. The length of your valve stem will vary with the manufacturer of the stem.