GOWELL GLASSWARE manufacturing kitchen glassware in China for more than 10 years, we specializing in glass good containers, glass water bottles, glass baking dishes, glass cups, glass casseroles as well as glass measuring jars. The products all meet EU REACH, FDA, LFGB, ROSH standard. Following is Vacuum Glass Lunch Box , Non-toxic, BPA-FREE, phthalate free, biodegradable and 100% RECYCLEABLE glass storage food container Details of Kitchenware Vacuum Glass Lunch Box 1: Material: High borosilicate glass, silicone ring, with PP, TRIAN, MS lids. 2: Comes in Square, rectangular, round shapes 3: Heat resistance glass, nested glass container style 4: Safely locking and stackable 5: This Vacuum Glass Lunch Box are safe for oven, microwave, dishwasher, freezer, and this nesting glass containers retain their nice look and durability in temperatures up to 400 ℃.