These hoops are extruded from super fortified, extra flexible and light polyethylene. Excellent for the earliest grades when full size heavy-duty No-Kink" hoops are too heavy or too intimidating. Light enough to twirl on a finger! Their lightness also fights the forces of gravity when learning to "hula" hoop, making it easier to master at a young age. Includes 2 each red, yellow, blue, green, orange and purple.