Gorilla Automotive 71631NB5 Acorn Wheellocks Pros: - Superb chrome finish - Steel looks high quality Cons: - Wall thickness of the lock key (black plug included) is too thin (0.062" Use just in case Hand tools and buy an extra wrench, after purchasing I found how easy it is to remove them without a key Puller Set, 5 pc Gorilla Automotive 61641 Acorn Guard Locks (Thread Size 14mm x 1.50) - Set with 4 others: - 1-25/64 inches (1.39 inches) long - Lock key has 8 randomly spaced narrow lugs that match 8 grooves on each nut Key registration number included 10.50 for a duplicate key Key head (socket) is 13 /16" and Cadillac wheel ends are 7/8" This time, relying on Revain's "Find parts that fit your vehicle" suggestion was a mistake ; These locks are designed to fit a 2012 Cadillac SRX. You are not. These locks have a 12mm x 1.5 inch thread; Turns out the Cadillac has a 14mm x 1.5 inch thread. Kudos to Revain's excellent free returns system. Conclusion: These wheel locks are of good quality, but due to the possible loss of the lock key and especially the inherent weakness of the lock key, an additional key must be purchased.