HPI Racing package of eight white silicone O-rings. These are used in shocks, absorbing vibration, and many other uses. HPI package of 8 white silicone O-rings are constructed of silicone. These o-rings are not limited to use only in HPI vehicles.
Inner diameter: 4.5mm (0.18) Outer diameter: 6.6mm (0.26)
Nothing. These are direct replacement parts
Inner diameter: 4.5mm (0.18")
Outer diameter: 6.6mm (0.26")