1. Replace a pair of Jinfu DS13-MAX angle second-generation TMR rockers + black rocker caps, 2. Replace a pair of Jinfu DS13-MAX angle second-generation TMR rockers + white rocker caps, 3. Replace a pair of grain self-developed TMR electromagnetic rockers + black rocker caps, 4. Replace the grain self-developed 720-degree adjustable torque TMR electromagnetic rocker pair + 8-piece rocker cap set