The Caomaru is a round-shaped Japanese Stress Ball. It has four distinct facial expressions: a pallid shock, a sigh of relief, a gleaming smile, a sullen pout. This ball is super soft and squishy. Thus, it releases your stress and tension by squeezing it with your hand. The material is super elastic, allowing you to stretch and distort the face the way you want to. And, they’ll return back to their original shape after you play with them!