Includes pair of 15mm bolt on spacers with extended studs and moutning nuts. Pair of 7mm slip ons. Pair of 5mm slip ons. Pair of 3mm slip ons. - 59.5mm center bore for FC3S Mazda RX7 (1985-1992) fitment - 12x1.50 studs and mounting nuts - 5x114.3 PCD - Adjustable wheel spacers are a must for those who desire the clean "Tsuda-Ichi" (Japanese for "paper thin" gap) flush wheel to fender look without buying an expensive set of custom width wheels. Parts Shop MAX precision CNC machined aluminum wheel spacers are lug and hub centric. They are available for a wide variety of cars, so make sure you get the correct size. Features hardened steel studs and lug nuts all with a PCD of 114.3mm. The next generation of wheel spacers are adjustable width! Now you can have great fitment even if you change alignment, change tire size, change wheel size, etc. Need to dial in the perfect inside clearance with your new angle kit? Add or subtract the slip on spacers until you have the perfect clearance. Very useful and practical tool for slight setup changes at the track.