Are made of 100% borosilicate glass and are guaranteed to withstand temperatures of up to 350°C Can be safely used in the microwave, oven, fridge, freezer and dishwasher Unlike plastic...
Are made of 100% borosilicate glass and are guaranteed to withstand temperatures of up to 350°C Stainless Steel 204 Cap with Black color coated Inside Polypropelyne for thread with Silicon...