Teach sorting, patterning, size comparison and other early math skills with these durable plastic blocks. Each set includes 5 shapes, 2 sizes, 2 thicknesses and 3 colors. Sets come in a handy storage tray with shape sorter that can also be used for tracing. Multilingual Activity Guide included. Shapes in the Desk Set measure 3.1 cm–7.8 cm. Grades K+. 60 Pieces.