Yokomo High Grade O-Ring (Oil-Resistant Blue, 8pcs) YS-7HG2

High Grade P3 O Ring Blue 8 pcs, BD8/BD7 High Grade O-Ring (Oil-Free)

O-ring to prevent oil leakage from the shock shaft part. It is an oil-resistant tyop that does not penetrate silicon oil, and it is possible to maintain good condition for a long time. Used as an upgrade in the big bore shocks.