Usage: Use a coin holder for coin ping testing, a gold keychain magnet tester for authenticity testing, and a coin measuring card to determine coin size and thickness,Using Coin Sound Tester to Test the Authenticity of Coins
precious coin tester suit;used for silver coin and gold coin ping tester Verify the authenticity of the coin,compatible application; Precious Coin Tester , Pingcoin, and Coin Tester.Verify the authenticity of the coin
Usage: You can also use a coin holder for pin testing and determine the authenticity of silver coins through sound. You can also use a magnetic clasp to determine the authenticity
gold coin and silver coin ping tester;Easy to use, just pull down and secure the coin to test the coin ping,Can be placed in a pocket for easy carrying and use, with a storage bag size of 4x6 inches