For Mazda Miata MX-5 Aluminum Scaled Coilover Kit Set (Red Spring) - NA Adjustable from 0 to 3 inch ride height CNC precision machined aircraft aluminum sleeves Scales marked on sleeves for ease of adjustment High strength cold wound springs, powder-coated Accomodate stock or aftermarket shocks 4 x Coilover spring 4 x Scaled sleeves with locking perches 4 x Bushings 2 x Adjustment spanner wrenches 1 x Bag of plastic rings Hardware as Shown in the Picture Above Mazda Miata MX-5 Naturally Aspirated (1990-1997) Materials:  T-6061 Aluminum Sleeves / Steel Springs Surface Finish:  Anodized Strut Top Adjustable from 0 to 3 inch ride height CNC precision machined aircraft aluminum sleeves Scales marked on sleeves for ease of adjustment High strength cold wound springs, powder-coated Accomodate stock or aftermarket shocks