Inner Diameter 27mm Suitable for 80-90kg
Inner Diameter 28mm Suitable for 90-100kg
Inner Diameter 29mm Suitable for 100-105kg
30mm Inner Diameter Suitable for 105-130kg
Inner Diameter 31mm Suitable for 130-150kg
Inner Diameter 32mm Suitable for Over 150kg
Inner Diameter 32.5mm Suitable for 170kg Or Above