Hula Hoop 1.KD installed,can free choose size 2.Chain wheel for magnetic massage 3.Can release the pressure and keep fit body Magnetic Fitness Sport GYM Equipment Hula HoopHula Hoop Features:Hoop to keep body fitness Exercise health hula hoop Easy complete assembly and decompose Hula Hoop keep body fitness:Magnetic hula hoop is the update version based on the original by adding specific magnetic ...