Set of 4. High concentration of nanoparticle medicated hydroxyapatite (mHAP) + pearl component - Absorbs and removes plaque - Repairs micro-scratches on the surface of teeth - Replenishes minerals beneath the surface of the teeth - Prevents tooth decay by improving enamel There is a possibility that the outer box may be dented or crushed during delivery or postage. Please only purchase if you are okay with this. APAGARD® ROYAL nano APAGARD® ROYAL