Teach sorting, patterns, size comparison and other early math skills with these durable plastic blocks. Each 60-piece set includes 5 shapes, 2 sizes, 2 thicknesses and 3 colors. Sets come in a handy storage tray with a shape sorter that can also be used for tracing. Activity guide included. Size: 21.6 x 18.3 x 3.6 cm. Ages 5+.