Imperial Inches
Total Length 17.1"
Usable Length 14.8"
Head Circumference 10"
Head Diameter 3.1"
Medial Ring Circumference 10.2"
Medial Ring Diameter 3.4"
Metric CM
Total Length 43.5cm
Usable Length 37.5cm
Head Circumference 25.5cm
Head Diameter 8cm
Medial Ring Circumference 26cm
Medial Ring Diameter 8.75cm