【 Food-Grade Material 】: These mixing bowls set are made of high borosilicate heat proof clear glass ,which are lead-free,sparkle and clarity.The lids are made of food grade PP material ,BPA-Free 【 High Temperature Tolerance 】: The glass mixing bowl are made of high brosilicate material, and tolerates -4℉ to 1040℉ ,access to microwave,oven,fridge and freezer directly(exclude the lids). 【Versatility in kitchen】: These round glass bowls come in different size of 4.5qt ,3.7qt ,1.1qt, perfect for whisking ,baking ,mixing and prepping ,which almost satisfy our various kitchen needs. 【Space-Saving Storage】: WhiteRhino kitchen nesting bowls are stackable and neatly nested inside each other, easy to stack up on the shelves and take up very little space. 【Stain and Odor Resistant 】: The glass is on-porous,and each bowl is equiped with an airtight lid,so it won't discolor and retain smells. With capacity of 1.1QT, 2.1QT, 3.7 QT, the glass storage bowls with lids could meet our different demands for dressing salads, mixing eggs, making dough, and washing vegetables etc. These clear salad bowls are dishwasher and mircowave safe. *High borosilicate glass Lead-free *Food grade pp lids BPA-Free *Pefect nesting stacakable design *Oven, microwave, fridge, freezer and dishwasher safe *Versatile in kitchen: baking, mixing, cooking, prepping, serving and food storage