This is a Kennedy Half Dollar gimmick coin, the Triple Tango Ultimate Coin. It is a special triple-layered shell coin, and when it returns to one coin (stacked state), it is magnetically locked (integrated by attraction). Therefore, you can show it rolling on a table or wrap it around your lap. <Overview> One coin appears, increasing to 2 coins, then to 3 coins. After that, it disappears one by one to finish. <Details> A "special shell with a steel core" is stacked on the 2-coin version of TUC. Each coin is specially developed, with optimized diameter and edges. The edges (sides) of all three coins are complete without any chips. The "instructional video (English version)" can be viewed by entering the password (written inside the package) at the following URL. An overwhelming number of video explanations are available (excerpt): - Coin Across - 3 Fly Coin - Coins Thru Table - Coin Thru Bill - Matrix - Coin Vanishes - Productions - Chink a Chink - Okito Box Routine - Coin Thru Hand