Kuke Set of 4 Unbreakable Silicone Wine Glasses Stemless Collapsible Drinking Cups 9/12 Ounce (Blue-9 oz) Material: 100% food grade silicone, BPA free, FDA approved Capacity: Size L holds 12 oz and Size M holds 9 oz Durable and Solid: Long life components are selected to assure a stable and distortion-free Temperature Range: High and low temperature resistance from -46F to 460F -40C to 230C) Easy to Use&Clean: Hand washable, dishwasher, oven, microwave and freezer safe