This range of teethers have been designed based upon the average diameter of a child?s finger, promoting natural teething and providing comfort. As with the Feeding Bottle and the rest of the Borrn range, our goal to ensure optimum hygiene informed our material choice. In this case we have utilised medical-grade, BPA-free silicone. Aesthetically, the full range has been designed to emphasise a consistent design language of simplicity and playfulness. The full range of nine animals has been designed following simple rules; the bodies are always circular, and the personality is achieved with straight lines that exit from the circumference of the body. Features: 100% food-grade silicone Made in the U. K. Stimulates tooth and finger development EN71 Approved