Four in One Eisenhower Dollar Set (D0146) by Tango
The magician shows four Eisenhower dollar coins in his hand, then takes one of the coins & brings his pocket, when you reopen your hand has 4 coins again.
Returns to remove a coin from his hand & takes her to his pocket but when you open your hand has 4 coins. Repeat this 2 times & always has 4 coins.
Finally it shows the 4 coins in his hand & takes a pocket to carry it when you open your hand & the other coins have disappeared.