spins continuously and effortlessly as it moves upand down - from one arm to another, or as you pass it to afriend.Watching it glide is just as mesmerizing andaddicting as it is to use. Get your groove on and feel themovement! Geometric sensory spring toy Great fidget toy for school / office use Recommended for ages 6+ 5" in diameter (when flattened as a ring) From ring to zing!  is a set of carefully crafted ringswhich,when set in motion,mystically come to life, spinningin a gyroscopic display of light, color, and movement that'sas fun as it is beautifu.