This metal mixing bowls have matte finish inside to prevent ugly scratches. Perfect nesting bowls with lids. Stainless steel bowls for mixing & storing. BPA free lids for lasting freshness. This bowl is ideal for baking, cooking, salads, storing and more. Non-slip bottom to ensure firm mixing. High rated bowls with lids, highly resistant to rust, crack, stain, corrosion compared to other mixing bowls. dishwasher, freezer & refrigerator safe.