【Material】Our finger exercise ball is made of high quality materials, no obvious odor and non toxic, you can use it safely and with confidence.
【Size】The size is 1.77*3.15in/4.5*8cm, perfectly sized for a comfortable fit for grip strength training for both men and women.
【Advantage】It can increase hand flexibility, improve strength, prevent stiffness, and relieve joint pain of hands, wrists and forearms. Simple exercises greatly relieve daily stress and increase the strength of your hands, forearms and fingers.
【Design】Fingerprint design, more comfortable to pinch, the jelly q bomb has a solid feel, soft, medium and hard three speed design, suitable for different needs of households.
【Application】Widely used, it is a good hand exerciser for frequent office workers and mountain climbers, also very practical for stroke rehabilitation patients.