100% free from BPA, PVC, latex and phthalates. Dishwasher safe (top rack only). Soft nipple. Should be sucked on as a means to soothe, not chewed. We recommend to replace after 2 months of use for safety and hygiene. Always sterilize for 3 minutes before first use. To avoid choking hazard, inspect before each use and complete a pull test inspection by pulling the nipple in all directions. Discard immediately if signs of damage. Do not use without adult supervision. Do not tie around a child's neck. Silicone does not harbor bacteria or support the growth of mold.