BOSU on Twitter: "The #BOSU Ballast® Ball comes in 2 different sizes. - The 65 cm #BallastBall is specifically designed for Club or Gym use by multiple people in clas-type settings -
BOSU Ballast Ball 65 cm | Physiosupplies.eu
PHYSICAL COMPANY BOSU® BALLAST BALL CLUB PACK - Gym Equipment Wiltshire - Fitness Equipment Wiltshire - Gym Equipment Somerset - Second Strength