Safe Materials: These egg cups are made of food-grade silicone. Environmentally friendly, non-toxic, high-temperature resistant, and free from harmful substances like BPA. They offer good elasticity and are not easily deformed. Economical and Practical: These silicone egg cups are sturdy and durable. The egg cooker easily makes boiled or poached eggs. The 100% non-stick surface makes egg preparation simple and perfect without damaging the egg. Non-Slip Design: Unlike traditional egg cups, the bottom of these silicone egg cups can be firmly fixed in boiling water, electric pressure cookers, stoves, or microwaves without fear of eggs falling and leaking. In addition to boiling and cooking eggs and storing eggs, these silicone cups are also very suitable for depositing other items.