I bought this new, washed it, and stored it. I'm selling it because I haven't used it. MEYER Disney Microwave Container 640ml, 320ml The cute Mickey Mouse-shaped silicone cover around the glass body protects it from impact and prevents slipping. The silicone cover is removable, so it's always hygienic. If you lift the knob on the lid, you can heat it in the microwave with the lid on. Microwave/Oven safe [Materials] Lid: Polypropylene (heat resistance 140°C), Glass Body: Heat-resistant glass (heat resistance 400°C) Cover: Silicone rubber (heat resistance 200°C)