Baseboard (10cm x 10cm) & 100 x 1cm Interlocking Cubes Set - Counting Linking Snap Building Maths Home Early Learning - Extra Boards Available. This set includes the board for easy fixing of cubes and provides a stable surface to work on. Extra boards also available on other listing, these can also be interlocked to form a larger base area.(20cm x 20cm) Linking Cubes snap together to provide mathematical learning experiences in developing children's skills in counting, classifying, addition, subtraction, place value, measuring and patterning. Plastic 1cm cubes in 10 colours connect on 4 sides and are easy for little hands to connect and twist apart. An essential resource for early learning home schooling. Can also be used as building blocks for model making. Colour mix will be random