You Rock Stress Buster is a clear thermal plastic rubber ball filled with colorful gel-filled beads, covered with a plush design Emoji face ball that says "YOU ROCK" in black embroidery. Beads inside give a massaging feel when squeezed out of cover. Ball returns to original shape when released. Complies with ASTM, CPSIA, Prop 65. 3.75" H x 2" Diameter