We love Grimm's creative interpretation of the educational "fraction blocks" because it's so much more in all the details.  From the beautiful color shades to the rounded edges and many interesting fractional shapes, children will "discover" parts of a whole for themselves.  This is how true learning takes place.  This 30 piece block set will be used throughout childhood -- it's our favorite Grimm's toy.  Ages 3+.  100% FSC-Certified Alder.  Germany