Specifications:The ring looks completely natural to any spectator, in fact that the ring does all the work for you.Baffle your audiences with this magical ring that appears to change size before your very eyes.This trick is a quick learn for people of all skill levels.This ring has enough material to put together a magic show for family and friends.Type: Magic RingMaterial: NdFeBFeatures: Mini Size, Magic Prop, MagneticSize: 18mm/0.71", 19mm/0.75", 20mm/0.79", 21mm/0.83" (Approx.)Notes:Remember not to fall.Due to the light and screen setting difference, the item&39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Magic Ring