tandard type/mini type, 0.018/0.022, 3 with hook/ 345with hook/without hookMBT, standard type/mini type, 0.018/0.022, 3 with hook/ 345with hook/without hookEdgewise, standard type/mini type, 0.018/0.022, 3 with hook/ 345with hook/without hookMaintenanceIn the daily maintenance, avoid sticky, hard and acidic food. In the process of use, brush up and down gently use soft toothbrush every day under the guidance of a doctor.Storage:stored in a room with a relative humidity of less than 80%, no corro