High-quality iris knurling with European car patterns.
AYAME double-line opening.
Valve body: brass (tin-cobalt plated), corrosion-resistant coating
Effectively protects the valve stem from leaks.
Price is 1 set of 4.

Instructions/Precautions: 
1. Turn the original valve cap counterclockwise. 
2. Turn this product clockwise to lock it.