Product Color: blue, grayMaterial: plastic, electronicsPackage content: 1*electronic gripper1.Engineered for home, sports, and clinical use, auto/manual shut off, 2* AAA batteries included.2.Equipped with high precision strain gauge sensor. Measuring range: 1-90 KGF kilogram force.3.A maximum grip value display and weak, normal or strong power levels can be saved and easily recalled for comparison.4.The adjustable handle was suitable for users of different ages, a good fit for both big hands and small hands.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it