These are real, USA made, Spidertrax hub-centric 6-on-4.5 BP wheel spacers for the Frontier/Xterra/Pathfinder. These are not the imported copies on Ebay and Amazon. These are sold in pairs...1 kit contains 2 spacers. You will need 2 kits for all 4 wheels. These are the spacers we suggest when doing a Titan-swap (some people are tempted to run a 2 or even, 2.5" spacer; Not only does that put a LOT more stress on the axle bearings, the tire tyipcally wont tuck in the rear fender with anything wider than the 1.5). When running these on a Titan-swap you really cannot tell that the rear is actually 1" narrower than the front on each side.