The Bauspiel Lucent Cubes are made of high quality resin that is safe for children. 
 
These cubes really add something special and different when combined with a set of building blocks, they can be the windows, moats, doors, and rivers to any creations. Their transparency invites children to play with light and colour, combine with light panels and for illustrating the theory of colours. They can be submerged in water so are also wonderful for bathtime play. They are good for counting too.
 
Come in two sizes: 
-100 pcs Lucent Cubes comes with 10 colours with 10 pieces each, with a wooden box
-20 pcs Lucent Cubes comes with 10 colours with 2 pieces each, packed in a paper box
 
Part of the photo/video credit: @kiko_502, @wander.mi.trio, @__jiyekim__