Good for building, comparing and sorting into sets. Each block has a different set of properties - shape, colour andtype of insert. The blocks are an ideal resource for using on a lightbox.

16 blocks. 4 different colours, 4 different inserts - Acrylic, Sand, Beads and Water. Rubberwood surrounds Clear acrylic pockets.

Size: The Rectangle measures: L:140 x W:70 x D:40mm

Suitable for children aged 1+