Here, you are looking at the Dress Up Bolts Titanium Valve Stem Caps. These valve stem caps feature a unique motor head design making a nice addition to any wheel setup.
Dress Up Bolts Titanium Valve Stem Caps Gear Design Black 

SPECS:  

• Black finish  
• Includes 4 valve stem caps 
• Constructed from 6AL-4V Grade 5 Titanium 
• Available in anodized finishes of Black, Blue, Polished, Purple, Gold, Red and True Burned 
• Corrosion-resistant 
• Good for use on most vehicles