IT IS A 4 HAND HOLE 8 LUG DESIGN. SNAP ON DESIGN MEANS THAT YOU PUT THEM ON WITH A RUBBER MALLET RATHER THAN REMOVING LUG NUTS.
304-GRADE STAINLESS STEEL WITH 3-STAGE FINISHING INCLUDING HAND POLISHING. I do not know what "304-GRADE" means all I can tell you is they look sharp and will not rust.
We are not allowed to do that by law. THEY WILL FIT THE FOLLOWING.
There are more categories that may help you that are not displayed. IF YOU HAVE A QUESTION ON QUALITY JUST. READ MY FEEDBACK FROM BUYERS. The item "WHEEL SIMULATORS 1988-2007 CHEVY GMC 3500 16 DUALLY 8 LUG 4 HAND HOLE 4x2 /4x4" is in sale since Thursday, September 15, 2011. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Wheels, Tires & Parts\Hub Caps".The seller is "the_hubcap_king" and is located in Virginia Beach, Virginia. This item can be shipped worldwide.