Food-grade Silicon: Crafted From Premium Soft Silicon, Our Funnels Are Food-grade. They Are Resistant to High Temperatures From -40to 250, Ensuring the Safety & Health of Your Family. You Can Use Them with Confidence, Knowing They Wont Compromise Your Well-being. Thoughtful Design: Our Funnels Feature a Long-necked, Wide-mouth Design That Allows for Rapid Pouring Without Spills. the Collapsible Nature of the Funnels, with a Folding Height of Only 2cm, Makes Them Incredibly Space-efficient. Plus, the Convenient Hook Hole Allows for Easy Storage & Saves Even More Space in Your Kitchen.