022 Roth MBT 1st 2nd. Orthodontic molar buccal tubes Use for dental orthodontics treatment. MIM one piece made, never fall off. Sandblast on the mesh base, very strong adhesion stress. 4 Pieces / kit (UR+UL+LR+LL), 20 Kit / Box. MBT 0.022 first molar. MBT 0.022 second molar. Roth 0.022 first molar. Roth 0.022 second molar.