Doing the Job Right means having the Correct Professional Quality Tool with a Lifetime Warranty in your hand. Eastwood Sockets Mean Business. Chrome Vanadium Steel Exceeds ASME Standards Lifetime Warranty Eastwood Sockets are designed for durability due to a super hard Chrome Vanadium Steel design. No matter what you throw at these sockets you will be assured that they will stand up to the test of time. Backed by a full lifetime warranty you can rest easy knowing that you have a top-quality tool at an affordable price that will continue to perform for years to come. Chrome Vanadium Steel with Mirror Finish Includes – 10,11,12,13,14,15,16,17,18,19,21mm Sockets 6 Point Deep Socket Holder Rail Included