Thank you for viewing from among many options. Insert Cup & Holder Set - 10 pieces Set of 20 insert cups x 2 bags. Quality indication: Polystyrene Heat resistance: 70℃ Made of plastic, so it can be used for a long time. Convenient for picnics, outdoor activities, offices, and any scene. Please read the precautions on the back carefully before use. Please refrain from purchasing if you are nervous about home storage. It will be shipped via Rakuraku Mercari delivery, directly in a cardboard box. #InsertCup