This linking cubes base board is 20 x 20cm. Usein combination with 2cm linking cubes (sold separately). Use this base board with 100 sockets for symmetry, table patterns, block graphs and more. Multiple boards can link together.Please note: the base boards are compatible with the Linking Cubes 2cm.
 
The base boards are not compatible with the All Links Cubes 
 
10 packs on come with no numbers.