Plaqsearch is a two tone disclosing product for ensuring your kids (and you!) can easily identify plaque, and therefore improve their cleaning regime.Differentiates between old and new plaque; Old plaque will stain blue, New plaque will stain redUses natural vegetable dyes for blue and red colouring (Erythrosine free)Available in fruit-flavoured tablets - Easy, simple and efficientEach pack contains 40 Tablets with full instructions