"Stress ball toy are designed to increase peoples hand strength and flexibility. Squeeze it by your hand and release, it will come back to the original shape soon. it also can relax yourself when you are stressed at work. The product is available in several colors. In the case of multi-variant products, please select the model in the comments, we reserve the right to send the product randomly if it is unavailable for independent reasons (e.g. no pattern or color in the assortment, which we had no influence on)."