The Eco Ovenglass Rectangular Container from LocknLock is made from recyclable borosilicate glass which is very resistant to very high oven temperatures and rapid temperature changes. The lids are also eco-friendly and have been made from recycled plastic waste which is environmentally friendly, these thrifty containers are also perfect to use in the microwave and you can store them away in the freezer.Eco Ovenglass Rectangular FeaturesLocknLock Ovenglass RectangularEco-friendlyMade from plastic wasteBase made from borosilicate glassAirtightWatertightSuitable for microwave & freezer storageDishwasher safeCan be used in the oven without the lid for reheating and cooking dishesLocknLock\'s Ref.MPN: LLG428ARCL, LLG445ARCL, LLG455ARCLColour: ClearSizes: 630ml, 1L, 2LPM Ref: 1305252