1) Throw it on slippery surface (wall, desk, glass), and see how it sticks, and watch them splat and return to original shape suddenly and roll down the wall 2) Especially the sticky egg, you can see the same cooking progress (spreading the pan then suddenly return to the original intact shape, very magical, cool 3) Also called venting balls 4) Suitable as stress relief squeeze ball both for adults or children 5)Also have another shapes: tomato, pineapple, orange, pumpkin, strawberry, lemon, egg ect. 6) Size: 4.5*16cm 7) It also can put jelly or water inside Inner packing: 1pc/polybag 12pcs/display box Outer packing: 288pcs/ctn