YM301S Magician shows four metal ring without gap. Then he put metal rings link together one by one， and can check to the audience. Finally， he can separate the rings one by one cleanly. It is easy to learn， but it also requires you to spend a little time to practice. No instructions included， but you can find the explanation of the trick on the internet or consult your magician friends. Material: metal. Diameter of the ring: about 9.8cm .   Package Details Weight: 104.86 g Size: 12*12*1.5 cm Package Includes 1 × Chinese 4 Four Connected Linking Rings Magic Trick Kit