Grimm's counter rotating stepped spiral

The Counter rotating Stepped Spiral is fantastic to use in building up mysterious spiral staircases in a palace or to create a tower with a steep staircase or to make an imaginary place accessible. By building and playing with these blocks, children develop fine motor skills and spatial thinking skills. 56 building blocks on a wooden base height and diameter 30cm, single blocks 4cm thickness, length up to 15cm made in Bosnia solid lime wood, FSC mix, non-toxic water based color stain/non-toxic plant based oil finish. *This will incur a shipping charge of $15.95