Twisted Wonderland Stacking Tumbler Set of 2!! Set Contents: Dorm Crest Collection x 2 Caution: Do not use in the oven or grill. *For microwave use, please be sure to read the instruction manual. Body: Acrylic resin Heat resistance: 100℃ Shipping method: Standard Mail (Non-Tracked) Date of delivery cannot be specified. Delivery usually takes 2-4 days depending on the destination. Thank you for your understanding. *We do not accept price negotiations.