Yokomo YS-7HG2 High Grade O-ring (Oil Resistant/Blue/8pcs) 橫崛 Yokomo DP-GRA90W  [YS-7HG2]

O-ring to prevent oil leakage from the shock shaft. It is an oil-resistant tie that does not allow silicone oil to penetrate, allowing it to remain in good condition for a long time.