?THREE STYLES?- Three different 3D unlock interlocking puzzles. Keep the process of exploring puzzles fresh. Can also be shared with friends.
?SUPERIOR QUALITY?- Durable copper-zinc alloy material keeps a retro look and smooth feel. Safe and non-toxic, not easy to fade or be corroded.
?Beneficial Puzzles?- These Puzzlesare based on ancient Chinese ring games. Great for recreation and exercising logical thinking skills.
?WIDE APPLICATION?- They can be used to kill time at home or office. Great fun for people and their friends. Nice gift for Christmas, birthday or any other festivals.
?NOTE?- Cannot be opened forcibly to prevent cheating.