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 shaped stress balls, quantities to place , 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 , 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 products 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.