According to the size and hook, the fashion brackets can be classfied as following: Edgewise Fashion Bracket0.022"/0.018"No Hook Item No: E1025-1Edgewise Fashion Bracket0.022"/0.018"3#W/Hook Item No: E1025-2Edgewise Fashion Bracket0.022"/0.018"3, 4, 5#W/Hook Item No: E1025-3Roth Fashion Bracket0.022"/0.018"No Hook Item No: R1025-1Roth Fashion Bracket0.022"/0.018"3#W/Hook Item No: R1025-2Roth Fashion Bracket0.022"/0.018"3, 4, 5#W/Hook Item No: R1025-3MBT Fashion Bracket0.022"/0.018"No Hook Item No: M1025-1MBT Fashion Bracket0.022"/0.018"3#W/Hook Item No: M1025-2MBT Fashion Bracket0.022"/0.018"3, 4, 5#W/Hook Item No: M1025-3/b> More Product Features Model NO.: E1025-1 Standard: 018/022 Company: Hangzhou Protect Medical Equipment Co. Ltd.