The food storage container set is made of borosilicate glass with a bamboo lid which has an internal silicone seal. The glass containers are dishwasher, oven and microwave safe (not the wooden lid) They can be placed in the fridge and freezer with the lid and are stackable Features: - Seals in freshness - Reduce food waste - Oven/dishwasher/microwave safe (without lid) - Fridge/freezer safe with lid - Space optimisation - Hygienic - Eco friendly - Does not absorb smells - Clear to easily identify contents Specifications: - 400ml (130* 52,5mm) - 620ml (150*59mm) - 950ml (172*68mm)