"Create your ultimate custom set. These powerful RFID Chess Piece Sensor Chips  can be attached to any standard piece, making them fully compatible with your Chessnut electronic chessboard's piece recognition."

The chess piece sensor chips set are for DIYers making their own chess pieces. Since they need space to be placed, you will need to dig holes in the bottom of the wooden pieces. This requires you to have certain carpentry skills, please consider carefully before purchasing. 

What’s in the box

34 piece sensor chips (2 extra queens included)

34 silicone cases to protect the chips