The Checkerboard is an elementary-level activity used for long and short multiplication.  The board is made of natural and painted wood and features a nine-by-four grid of squares in red, green and blue with the columns marked for units, tens, hundreds etc. up to 100,000,000.

The Wooden Number Tiles for Checkerboard includes a variety of tiles in grey and white in a divided box with lid.  The tiles are 2 cm square, and the box measures 24 cm x 17.5 cm x 4 cm.

The Bead Bars for Checkerboard set contains twenty of each bead bar from one to nine, all contained in a compartmentalized box with lid.