These 10 nesting and stacking blocks will not only improve your little one’s motor and problem solving skills, but they will also help their learning and alphabet skills! The bright, graphic design will stimulate their senses and teach word and picture association. But don’t forget the most fun part — knocking them all down — will also teach spatial relations. This toy is truly a toy that allows your little one to develop as they play and have fun. The blocks are made from recycled materials and printed with vegetable inks.