Highly polished surface. Accurate in/out dimensions and consistent quality. Unique integral design ensures consistent and easy placement. Standard/Mini edgewise bracket 0.022"/0.018"---20pcs/kitStandard /Miniedgewise bracket 0.022"/0.018" with hook on 3---20pcs/kitStandard/Mini edgewise bracket 0.022"/0.018" with hook on 3, 4, 5---20pcs/kitPacking in bulk is also available HS Code: 30064000 Company: Hangzhou Dentop Medical Material Co., Ltd.