Food‑Grade Silicone Tested for Peace of Mind: Soft, odor‑free, BPA‑free silicone is tested by a CPSC‑accepted third‑party lab; only fits Philips Avent 4 oz glass bottles, not for 5 oz, 8 oz, 9 oz sizes or other brands Growth-Friendly Handles: Made for Philips Avent...