【No. 7#】Suitable for neck circumference 15-19cm Depth: 8.5cm
【No. 6#】Suitable for neck circumference 20-23cm Depth: 10.5cm
【No. 5#】Suitable for neck circumference 24-27cm Depth: 12cm
【No. 4#】Suitable for neck circumference 28-32cm Depth: 12.5cm
【No. 3#】Suitable for neck circumference 33-37cm Depth: 13.5cm
【2+#】Suitable for neck circumference 38-41cm Depth: 18cm
【No. 2#】Suitable for neck circumference 42-44cm Depth: 20cm
【No. 1#】Suitable for neck circumference 45-47cm Depth: 22cm
【Extra Large#】Suitable for neck circumference 48-52cm Depth: 28cm