Another stone building set from Anker Blocks, made of natural ingredients, these shapes of stones will allow kids to create endless forms. It contains 20 sample cards to fire kids' imaginations. With 36 stone building bricks made from the original Anker stone material kids can construct creative buildings and let their imagination run riot. There are countless possibilities to build mosaics, aesthetically appealing puzzles and edifices using the stones of the New Stone Age. Made in Germany of chalk, quartz sand, pigments and linseed oil.