Genius Jar Silicone Non-Stick Jar Drop Proof Containers with Removable Lids (3) Reusable, shadderproof, silicone jar with a twist off removable lid Dishwasher safe, freezer safe, refrigerator safe, and DROP safe (easily passes the bounce test!) The Original Genius Jar is perfect for taking a multitude of supplements on the go. Heat Resistant up to 450 Degree Fahrenheit. Medical Grade FDA approved silicone. The Genius Jar is 100% Non-stick--you will never have to deal with the struggle of removing anything sticky from the inside of the jar.