Oring for the GasGas TXT Pro, the Electric Motion Epure Race & Comp, plus the Vertigo trials bike clutch slave cylinder for use with Mineral Oil Only
The 2 O-rings fit on the boss protruding from the clutch case cover.
Sold individually, two (usually) required per bike.
The o ring roughly 11.5 x 14.5 x 1.5 mm made from Viton