Welcome to our store！</br> 1、Hand Exerciser: It is made of high quality silicone and can be used for a long time. It has the properties of odourless, high elasticity, non-slip, tear-resistant and comfortable hand feeling. The hand trainer is small and lightweight and is very suitable for storing in your bag, sports bag or handbag. 2、 A circle of double strength: one hand trainer has two training strengths, and one hand trainer is equivalent to two hand grippers of other products. 3、 Increase strength and hand dexterity: stimulate acupuncture points, accelerate blood circulation, exercise the strength of hands, fingers, wrists and forearms. Hand trainers can be used in various activities, including squeezing, pinching and stretching, which can improve finger and hand dexterity. 4、 Ergonomic design: the hand trainer uses a square inner ring and a round outer ring. The elasticity is higher than conventional products on the market. The outer diameter is 8 cm / 3.15 inches and the weight is only 75 g. The ideal size for male and female hand training. 5、 Applicable people: for example, athletes, elderly, musicians and people who lack movement. Material: Silicone Size: Diameter: Approximately 8cm, Thickness: Approximately 2.2cm Net weight: about 75g Specification: 20-90LB 1 * Hand Traine Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>