Number 1:3cm*4cm*6cm*6cm for neck size within 30cm
Number 2:4cm*4.5cm*7.5cm*7cm for neck size within 32cm
Number 3:4.5cm*5cm*8.5cm*8cm for neck size within 34cm
Number 4:5cm*6cm*9.5cm*9.5cm for neck size within 40cm
Number 5:5cm*7.5cm*12cm*11cm for neck size within 47cm
Number 6:5.5cm*8.5cm*14cm*13.5cm for neck size within 56cm
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