The Dr. Brown's Learning Loop is a teacher of a teether - using texture and color to help develop and explore. Expand baby's world with four different textures to ease every part of baby's teething mouth. From soft to firm, baby will learn just what works to self soothe each area of their mouth. , , The 100% silicone teether is easy for little fingers to grip and brightens baby's day with attention-grabbing color. Its lightweight design makes it great for on-the-go teething relief. Easy-clean features make go-time even faster; it's dishwasher safe (top rack) and can be sterilized via boiling, microwave, or electric sterilizer. BPA free. 3m+.