This Board is a 6-sided format, each side 20 cm in size and has a wall that act as Rails, steel balls rolling along the walls from this Board comes with 2 cm.
This board features a six square size of 20 cm and a wall which serves as a conduit for iron ball rolling along the wall, which is higher by 2 cm from the board.
This board is a 6 angle size for 20 cm and the wall which serves as a conduit for the ball steel rolling along the way in which this wall is high from the board 2 cm.