Fitment: Compatible with 88-00 Honda Civic / 93-97 Civic Del Sol / 88-91 CRX; Compatible with 90-01 Acura Integra; Fits shocks up to 50mm OD mm diameter Adjustable Height: 1" - 4" Ride Height Adjustable With Scales, which Make Easy and Professional Adjustment Possible Material: CNC Precision Machined Aircraft Aluminum Sleeves; High Strength Cold Wound Springs Powder-coated for Maximum Durability Flexible Use: Dual locking perches; Can be used with any brand of shocks Package Includes: Set of 4 Coilovers and 1 x Coilover Wrench. Professional Installation is Highly Recommended; Installation Instruction is NOT Included