Original Pezzi® Mini Eggball®, featuring a diameter of 18 cm and a length of 36 cm, is a small, easy-to-handle training tool that is recommended to facilitate the effect on abdominal and leg exercises. Abdominal exercises are easy to do since the Mini Eggball alleviates muscular tensions of the back placing it at the correct angle position. Its many uses as well as its stability – thanks to its egg-shaped form – are well adaptable to the requirements of people practising Pilates exercises, who, when using this useful tool, can improve all the related proprioceptive effects of, as well as better executing Pilates gymnastic exercises. Furthermore, Mini Eggball regulates and improves muscular control of the centre of force that is in the abdomen, favouring flexibility and improving, aesthetically, muscle tone.