Standard plus size.
Index finger: 2.3 cm (diameter), 7.22 cm (circumference).
Middle finger: 2.3 cm (diameter), 7.22 cm (circumference).
Ring finger: 2.3 cm (diameter), 7.22 cm (circumference).
Pinky Finger: 2.3 cm (diameter), 7.22 cm (circumference).
Standard size
Index finger: 2.1 cm (diameter), 6.59 cm (circumference).
Middle finger: 2.1 cm (diameter), 6.59 cm (circumference).
Ring finger diameter: 2.1 cm, circumference: 6.59 cm.
Pinky Finger: 2.1cm (diameter), 6.59cm (circumference)
Childrens size.
Index finger:3/4" (diameter), 2.36" (circumference)
Middle finger: 3/4" (diameter), 2.36" (circumference)
Ring finger - 3/4" (diameter), 2.36" (circumference)
Pinky Finger: 3/4" (diameter), 2.36" (circumference)
Product Includes:
1 x Adjustable Finger Expander
1 x screwdriver.