A fine crafted soft wooden puzzle offers a hand on introduction to numbers 1 to 20. Children learn through play as they fit the brightly coloured wooden pieces in the cavities of the board. Each letter is 6 mm thick. Kids can use the pieces for tracing out numbers. It helps to build their imagination and sharpness their power of observation. It also exercises their memory, improves finger coordination and helps them to sort out differences in shapes, size and colours.