Suitable Size: each of stress balls are measures . 7 cm/ 2.76 inches long, proper size fits hold and grip, suitable for most and adults to play and bring people Sufficient : you will 12 pieces of stress balls, quantities for you to place at home, office, in your car or at school to release your stress at any time, and also perfect for exercising your hands and increasing your grip strength, muscle exercise, and more Quality Material: these stress balls for adults are made of quality polyurethane material, without any filling, not easy to break, to twist and , good resilience, can be pressed repeatedly, and no irritating smell, suitable for all kinds of hand shapes, and can be applied for a long time Stress and Anxiety Relief: these stress relief toys are perfect for relieving tension, stress or anxiety, by pressing on , your emotions can be vented, and by pressing to concentration and your mind and body Fabulous Gifts: the flexible toys are a and thoughtful gift for your friend, family, loved ones, colleagues and more; Furthermore, they also can be applied as prank props, stocking stuffers, party gifts, carnival prizes, school prizes, classroom reward, and so on Color: red Material: polyurethane Package Contents: 12 x Stress Ball Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.