Imperial Inches
Total Length 11.2"
Usable Length 9.4"
Head Circumference 6.9"
Head Diameter 2.1"
Medial Ring Circumference 7.1"
Medial Ring Diameter 2.5"
Metric CM
Total Length 28.5cm
Usable Length 24cm
Head Circumference 17.5cm
Head Diameter 5.25cm
Medial Ring Circumference 18cm
Medial Ring Diameter 6.25cm