Features: Squeeze Toy: Soft color stress balls toy, whose diameters are about 5.5-6 for cm/2.16-2.36 inches. Cute Deveil Balls: It would be a great gift for your friend and families who are under pressures. Safe Material: Stress relief balls toy is made of high-quality TPR, non toxic and soft. Stress Relief: Put one stress toy on your hand, grip and squeeze, you can see the balls poped out and getting bigger, release the toy, the balls will resume. This process is super healing and relax! MultiColors: We offter 4 color of squeeze balls for stress relief. Specifications: Component: TPR Color: 4 Option Size (Approx.): Diameter 5.5-6cm/2.16-2.36in Weight: Approx.85g Package Includes: 1 Piece Squeeze Toy note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.