Fitness mad peanut massage ballroll out tight muscles with the fitness mad peanut massage ball. The balls unique shape allows you to get close into your back muscles, without putting pressure on your spine. Can also be used for massaging your neck, shoulders, hips, glutes, hamstrings and calves.how to usestanding next to a wall, place the ball into position between your back and the wall ensuring the dip is in line with the spine i.e. Not touching and ease side of the ball against your back muscles. Leaning against the wall with the ball between the wall and your back then roll up and down, lowering yourself into a slight squatting position and then back to upright again, ensure your feet are approximately hip width apart.featuresperfect for use before or after exerciseuse to release tight and uncomfortable musclesself massagedimensions 14cm l x 6.5cm diameterwarning not suitable for those with back injuries or lower back pain ndash always consult with your doctor or qualified health care professional before usebuy fitness mad training aids from chain reaction cycles, the world's largest online bike store.