The Tein Street Advance Coilover Kit is a high-quality one-way adjustable fast road coilover. Designed with fast-road driving in mind, the Street Advance kits allow users to adjust not only the ride height but also the damping allowing you to fine-tune them for exactly the sort of driving you are doing.Steel construction for durabilityRide height adjustable via spring seatFull-length dust boots offering protectionThis damping force is adjusted using a 16-point mechanism, which adjusts both the compression and rebound together for simplicity. The 16-point adjuster mechanism enables accurate adjustment for almost every environment yet also allows the driver to notice a change in every step. The dampers themselves feature a shortened shell case design which ensures optimum performance at lower ride heights, whilst the damper internals have been developed to offer increased durability and longevity.Specifications Include:Twin-Tube internal constructionLarger piston diameter for strut type