... Aluminum Alloy PTC Heater Design* Multi-Functional Egg Shelf Design , Varied Size Of Egg Can Be Steamed* Measuring Cup With ... Perforated Function, Avoid Egg Shell Burst During Steaming* Dry-Heating Prevention and Overheat ... Protection, Double ProtectionMaterial:Housing: PP; Egg Shelf:PP; Cover: PP Color can be customized according to ...