The WePlay Squeezer comes with 2 sets of 3 different rings, sized to fit into the palm of a hand. Each colour piece offers a different resistance to help build finger strength and stimulate fingertips. Holding, squeezing and twisting the Squeezer progressively strengthens the muscles of the hands and wrists while improving wrist joint flexibility. The dots on the rings also provide the hands and fingers with a pleasant massage, improving circulation. Ages 6 months+.