I liked the ability to check tire pressures at a glance, although my car also tells me what my tire pressures are. These caps cost me $130 to repair. hooked up to a tire pressure monitoring system (TPMS) so I had to put on a spare. And go to the shop that had the TPMS for my car and have it replaced. NOT A fun way to spend a Sunday. Needless to say I DO NOT RECOMMEND these because they protrude and increase the risk of snagging and cost you SIGNIFICANTLY more than the purchase price of these valve stem caps.