Imperial Inches
Total Length 14.4"
Usable Length 12.4"
Head Circumference 8.1"
Head Diameter 2.6"
Medial Ring Circumference 8.7"
Medial Ring Diameter 2.8"
Metric CM
Total Length 36.5cm
Usable Length 31.5cm
Head Circumference 20.5cm
Head Diameter 6.5cm
Medial Ring Circumference 22cm
Medial Ring Diameter 7cm