Rubber magnet are compounds of plastics or rubbers combined with magnetic powders of strontium ferrite and are processed by the calendering or extrusion method.

It can be supplied with a self-adhesive backing, plain brown, white gloss or colour. Stable corrosion resistant. And good resistance to demagnetisation.

This Star Chart can be used for up to 3 children. Each child is given a colour and their name is written in different colour.