■Product: RS Helper Spring (Flat): ■Quantity: 2-piece set: ■ID: 62 (Φ62): ■Free length: 70mm: ■Spring rate: 0.3K: ■Adhesive length: 15.57mm: ■Remarks: ※ Requires separate RS assist spring and aluminum spacer set for RS helper spring Note: This product cannot be used with car height controls that use a special design spring that is not an ID62.