Rainbow Rubbing '7'

Circular rubbing plaque in a choice of colours. 90mm diameter x 8mm.  Suitable for indoor or outdoor use.  Pre-drilled countersunk fixing holes.  Can be used with pencils or wax crayons.  

Suggestion: Numbers can be used in a sequence to create an 'orienteering' style route or also, in combination with the 'plus', 'minus', 'equals' etc. plaques to form an arithmetical puzzle for trail followers to solve.