Standard TheraBand Exercise Balls:

Thera-Band brand Exercise Balls are available in 5 colorcoded sizes ranging from 45 cm-85 cm. Heavy-duty, nonslip vinyl. Use these balls to increase flexibility and improve coordination and balance. Balls are perfect for strengthening and toning abdominals, trunk muscles, arms & legs. Color exercise chart with each ball.

SIZE CHART:
45cm (17.7") Diameter, 56" Circumference    For Individuals Up to 5' Tall
55cm (21.7") Diameter, 68" Circumference    For Individuals 5'1" - 5'6" Tall
65cm (25.6") Diameter, 80" Circumference    For Individuals 5'7" - 6'2" Tall
75cm (29.5") Diameter, 93" Circumference    For Individuals 6'3" - 6'6" Tall
85cm (33.5") Diameter, 105.1" Circumference   For Individuals 6'7" & Up