Features: and high quality.Baoding balls:also known as meditation balls,are two little balls that can be held in one hand. China's traditional hand sports equipment has a history of thousands of years.Best Gift:Packed in a nice gift box, these baoding balls with so many benefits mean great gift for parents, friends, lovers, and more to encourage them do hand exercise anywhere .Easy e:When exercising, put two balls in your hand, relying on fingers flexion and extension, so that the two balls circled with each other.High-Quality Material:Electroplate metal balls, smooth surface and hardy structure for durable using.Multiple Benefits:Beneficial to the brain, relaxing brain while playing. Stimulate the circulation of blood and energy throughout the body.Keep your hands, fingers, wrist, and arm healthy. Package Includes:2 x Baoding Balls1x Box(The Color of the Box is Random) Specifications:Color:SilverMaterial: metalSize:Diameter: 3.3cm or 1.3in(Type A)Diameter: 3.8cm or 1.5in(Type B)Quantity: 1 pair note:If you have big quantity (only need over 50 dollars), please feel free to , I will give you SURPRISED PRICE(The more the quantity, the lower the price), thanks Size For Manual Measurement, there may be a 0 to 2 for cm error, belongs to the normal phenomenon.And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. YJL official store