Replacement pivot cups for your Carver Cx.4 and C2.4 surfskate longboard skateboard trucks.
Really, there shouldn’t be a need to replace these, as the pivot pin comes come greased as stock and the surface of them is super smooth.
But if you’ve somehow damaged your, got mad dirt inside and mangled them up, then replacing them is super cheap and easy to do. Recommended is a dab of marine grease in the cups, to provide smooth friction free turning.