Fitness mad adjustable wobble board 40cmchallenge yourself with the fitness mad adjustable wobble board, which can help you improve balance, build core strength, and enhance your range of movement.the adjustable wobble board has an adjustable angle that ranges from 19 to 23 degrees. The board is easy to adjust, simply screwing the rocker in or out ndash which allows you to progressively improve your balance. The more you screw the rocker out the greater the angle and the greater the difficulty.featureshelps improve balance, core strength and range of movementby improving proprioception the board helps to protect the body from injuryangle can be adjusted by simply screwing the rocker in or out19 to 23 degree range of movement40cm diameterweighs 850g125kg maximum user weightbuy fitness mad training aids from chain reaction cycles, the world's largest online bike store.