【Material】This Silicone Lids Spill Stopper is made of finest BPA-free silicone that it is eating healthy and toxic-free environment-friendly material. 【Adanvantage】The Spill Lids can not only prevent the soup from overflowing, but also can be used as a steaming basket or a heat preservation cover.It can be placed in Microwave Oven, Freezer, Dishwasher safe. 【Heat Resistant & Size】Maximum heat resistance up to 230℃, Minimum cold tolerance up to -40℃. Small-10.43*8.86in, Medium-11.81*10.24in, Large-12.8*11.42in. 【Easy to Clean & Hanging】This Boil Over Spill Stopper are very easy to clean for daily use. You can simply place it in your dishwasher or wash by hand and let dry,Hanging in anyplace. 【Usage】When Cooking Spaghetti, Soup, Macaroni And Oatmeal, You Can Use Silicone Anti Overflow Cover! The Overflow Of Soup Is Effectively Prevented.