Intuitive Design The four prongs are perfectly sized to mimic baby finger. So they’re just long enough to reach the back molars, but are sensibly sized to prevent choking. Sensible Material When it comes to all things baby, we agree that the single most important thing is safety. After exploring various options, we found out that silicone was safe. Baby-Finger Sized Our teethers designed to mimic those little baby fingers and are made with hygienic silicone material that’s safe, and oh so perfectly chewy. Quite simply, they’re made to give you hours of silent bliss.