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Diameter：Ø30.2mm/ 1.189in;Ø25mm/ 0.984in;Ø20.2mm/ 0.795in;Ø16.2mm/ 0.638in

Thickness： 3mm/ 0.118in

Weight： 4g/ 0.141oz

Maximum opening size：Ø30.2/4mm; Ø25/3.5mm; Ø20.2/3mm; Ø16.2/2mm