Colourful framed wheels, magnetic, 20 cm

MACHINE TRANSLATION (not authorised yet)

The set contains 9 pieces of colored circles, which when divided illustrate the whole (undivided circle) and fractions: 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/10, 1/12 and 1. Altogether the set contains 51 pieces. All the circles have a diameter of 20 cm and can be placed on magnetic boards, they are placed in a plastic storage case.