The salad bowl is made of non-toxic and lead-free food grade glass. Thicker bowls have more weight. Glass bowls are not suitable for heating too quickly and freezing too quickly, as this will cause the gold paint to wear away. So not suitable for dishwashers and microwaves and zero-degree refrigerators. It can be used to hold salads fruits vegetables nuts snack biscuits sauces etc. Suitable for home kitchens restaurants bars etc. Home preparation buffet service. A great birthday housewarming Thanksgiving Christmas gift.