These are the chess pieces to a very small chess set, which can be found under "Micro-Chess Table" or thing:752228. The display model can be found under "Micro Chess Table: Display Model" or thing:752250. The piece holder and piece holder display can be found under "Micro Chess Table: Piece Holder Attachment" or thing:752527, and "Micro Chess Table Piece Holder Display" or thing:752528 respectively.