size
Style 1: 3.3*3.4cm
Style 2: 3.5*3.5cm
Style 3: 3.5*2.6cm
Style 4: 3.2*2.8cm
Style 5: 3.8*3.4cm
Style 6: 2.7*3.0cm
Style 7: 3.4*3.2cm