Portable and easy-to-carry Reversi game, with a locking function for worry-free play. - Game Name: Reversi - Made in: Japan - Portable Series: Portable - Locking Function: Yes - Colors: White & Black Thank you for viewing. I bought this for work, but I won't be using it, so I'm putting it up for sale. It has been assembled but is unused. For those who understand. Each game piece is approximately 1.5 cm in diameter. Ages 6 and up.