Hand exercise rings build strength in the fingers, hands, wrists, and forearms. It is made of high-quality silicone and highly elastic, crack-resistant, and skin-friendly materials. Ergonomically designed to better fit the palm of your hand, it is non-slip and non-deforming. The perfect tool to effectively relieve stress and fatigue and relax yourself during exercise. It is lightweight, easy to carry, and space-saving sports equipment. Orders of 2000 pieces or greater are eligible for sea shipping. 100% guarantee for quality.