Our brandnew Ultimate Collection: All Variations included: Pro Bushings & Pivot Cups Sets. FlashBone Pro Bushings include: 3 Sets of Bushings (Normal, Soft, Super Soft) and 6 Sets of Pivot Cups (normal and small) and a Stickersheet. Hardness: All Variations included: Normal, Soft, Super Soft, Precision: Mold tolerance is +-0.05 accuracy. (In general, a typical tolerance for injection molding is +/-0.1mm) FlashBone Stickersheet included. FlashBone Pro Bushings are extraordinarily durable and compatible with all professional fingerboard trucks. The pivot cups...