Weplay Squeezer comes with 2 sets of 3 diFFerent rings. The size is designed to fit into the palm of a hand. Each color piece has a diFFerent resistance to help build finger strength and stimulate fingertips. The Squeezers strengthen the muscles of the hands and wrist by holding, squeezing and twisting the Squeezer. Three levels of resistance allow users to progressively strengthen their grip and the muscles in their hands and wrists. Strengthen hand and wrist muscles by holding, squeezing and twisting Weplay Squeezer. Improve flexibility of the wrist joints. The dots on the Squeezers provide hands and fingers excellent massage. Stimulate fingertips and improve circulation.