Size 2:
Outer Diamter: 10mm
Inner Diameter: 5mm
Thickness : 0.2mm
Size 3:
Outer Diamter: 10mm
Inner Diameter: 6mm
Thickness : 0.2mm
Size 4:
Outer Diamter: 10mm
Inner Diameter: 5.1mm
Thickness : 0.6mm
Size 5:
Outer Diamter: 12mm
Inner Diameter: 5.1mm
Thickness : 0.6mm
Size 6:
Outer Diamter: 12mm
Inner Diameter: 6.2mm
Thickness : 0.4mm