10 x 10 peg board with 1000 coloured pegs in 10 different colours. Peg colours are equivalent to the Montessori short bead stairs (red, green, pink, yellow, blue, purple, white, black (for brown), navy blue and orange (for gold). 100 of each colour. A 100 hole pegboard and 100 of 10 different colours of pegs (1000 total). This peg board can be used for many of the exercises of the short bead stair and is particularly useful for subtraction as the pegs can be taken away, multiplication as all tables can be represented to 10x10 and division and used as the standard division board. So versatile and so simple the mathematical possibilities are endless: patterns, arithmetic, geometry, area, square numbers.