1pc Magic magnetic Ring Invisible Fly Prop Magic Tricks Close-Up Magic Show Trick Prop Stage Street magic accessories (20mm Dia.)

• Package includes: inner diameter 18mm/1pc
• Material:stainless steel ring with black ring together(as pictures show)
• Usage: simple operation for beginners and magicians
• Effect: it will give you a host of unique opportunities to amaze and impress
• Customer serves: if you need instruction video, please contact us by email

It is looks like a normal ring, but it does a magic ring that can floating in the air. How to determine your finger size? Wrap a piece of string around your finger. Mark the point where the two ends meet. Measure the string against a ruler to get the circumference of your finger. Divide the circumference by 3.14 to get the diameter of your finger.