SENSEN Full Set 4 Pieces Speedy Strut Complete Strut Assembly, Lifetime Warranty Precision-Engineered, Brand New Strut Assembly Direct Fit - Ready to Install - No Special Tools Required! Remove and replace the Complete Strut Assembly in one piece. Complete Strut Assembly includes strut, coil spring (when applicable), strut mount, boot, bumper kit, spring seat and isolator. Quality Control system certified by ISO9001:2000 and ISO/TS 16949:2252 SENSEN limited lifetime warranty, Purchase with confidence.