Twin pack of M10 speed bleeders for brake calipers with 10mm bleeder nipples. Simply loosen the bleed nipple and an internal check valve allows fluid to flow out, but nothing can flow back in. This size fits most Brembo brake calipers using the large 10mm bleeder nipples. Measure across the threads to verify. Standard M10 x 1.25 thread pitch. Used on single bleeder F08 calipers, and used on the rear calipers on the V11 California series.