2.75 Inch Set. This is our smallest package of magic Chinese linking rings This is a quality set of 4 Linking Rings This is a classic of magic. Mysteriously the rings link and unlink at the magicians command.Great Illusion Many routines are possible. They come with basic instructions. We also have a great video to learn the rings with. Trick requires some skill. Recommended for ages 6 and up Most every professional magician has a set of Linking Rings!