Flexible use: 2 hedgehog balls for stimulating massage, increases local blood circulation, 1 lacrosse ball, for delicate applications or as a stress ball, 1 trigger point ball, deep action thanks to the special surface structure, 1 peanut ball, for firm and localised pressure. Promotes surface sensitivity 🌸 STRUCTURE: You can use different degrees of hardness and surfaces to reach different trigger points and tensions 🌸 ADJUSTABLE: Lacrosse and Peanut balls are equipped with a valve that allows you to determine the degree of hardness and adjust it individually with a normal ball pump 🌸 Areas of application: targeted stimulation of reflex zones and trigger points | release of tension and muscle hardening | pain relief massage for joints, tendons and ligaments | gripping and sensitizing exercises | for warming up or regenerating after training