Baby Montessori Sensory Teething Toy – Safe, Multi-Functional BPA-Free Silicone Teether for Babies 0-12 Months – Teething Relief & Fun Play with Rattle – Perfect Baby Toys for Boys & Girls. Dual Function: Teething Relief & Rattle Fun – This baby toy combines teething points and rattle sounds to soothe your baby’s sore gums while keeping them entertained.