100% natural rubber latex – people and planet friendly production (plastic-free!) No PVC, BPA, phthalates and artificial colours The colour pigments are mineral based, and FDA (USFood and Drug Admiration) approved for food contact. They are completely non-toxic and eco-friendly Soft and gentle on baby’s face Uniquely designed ventilation holes Hygienic solid design – eliminates bacteria The ergonomically butterfly shape gives space for nose and chin Prevents vacuum around the mouth