Accessories: Damper-2pcs 9mm Balls-2pcs Stainless Steel Round Head Screw 3x16-2pcs Stainless Steel Round Head Screw 3x23-2pcs 3mm Lock Nut-4pcs Original Name / Part No: LOS233011 Part location: Front dampers Does this product replace a specific part or function? yes Product major function & usage: Reduce the friction and absorb the pressure during driving so that the car can be more balanced. Is this part adjustable? If yes … how and why/purpose? How: Adjust the top spring retainer. Purpose: To adjust the hardness of the spring damper. Major advantages of upgrading to this product: 1. Made with a quality light weight high tensile strength aluminum 6061 T6 for greater durability. The spring coil has increased from original 1.4mm to 1.5mm, 2.1mm coil also available for more powerful use. 2. The damper shaft has thickened from 3.5mm to 4mm and smoothly polished to avoid bending. 3. Alloy bo