According to the size and specification, the roth band can be classfied as following: 1st Band with Non-convertible Roth Buccal Tube 0.022"/0.018" 2ND Band with Non-convertible Roth Buccal Tube 0.022"/0.018"1st Band with Non-convertible Roth Buccal Tube 0.022"/0.018" Chinese System: 11#, 12# ,36#, 37#International System: 31#, 31#+ , 33#+, 44# Trademark: OEM Productivity: 10000 Company: Hangzhou Sunny Medical Equipment Co., Ltd.
