Can be used to explore a variety of mathematical concepts.
Handcrafted by German company Grimm's Spiel und Holz Design.
Includes 100 stepped blocks in 10 different rainbow colors.
A great learning set for both younger and older children (from 3 years up).
Made from natural wood & colored with non toxic water-based stains (no paint or varnish).
8.9 x 8.9 x 4 inches