Contains: 4 Indicator Arms (1 Anterior, 2 Posterior, 1 Bitewing), 4 Aiming Rings (1 Anterior, 2 Posterior, 1 Bitewing) And 17 Biteblocks (4 Anterior, 8 Posterior, 5 Bitewing - 2 H#2, 1 V#2, 1 H#0/1, 1 V#1)