Durable Stainless Steel Bowl: Constructed of mirror-finish interior and fingerprint-proof matte-finish exterior, which is made of high quality food grade stainless steel material for better shock-proof and rust-proof. No issue of plastic, which is harmful chemicals!.Non-Slip Silicone Bottom: Unlike normal mixing bowls, each of the bowl comes with silicone bottom to stabilize bowls while mixing, kneading or whipping food. The silicone bottoms prevent the bowls from sliding, but also make them easier to hold..7 Sizes Available & Space Saving: Totally 7 different sizes. Deeper capacity contains 1.5, 2, 2.5, 3.5, 4, 5.5, 7 quarts to better meet your demands of mixing, marinating or washing. Set of 7 can be stackable placed together for saving space. Comes with basting brush, spreader spatula, flexible spatula and egg whisk for helping you cook more easily..Air-Tight BPA Free Lids: The bowls have their own lid, which is BPA free and able to closely fit the bowls and make sure food fresh and clean. Push down to seal them and to make sure it is tightly fitting. Great for food storage!.Easy To Clean/Use: Simple to clean by hand and dishwasher safe. Bowl sizes fit on standard size refrigerator shelf, cabinets and pantry. Please hand-wash the lids to minimize exposure to heat. Great gift idea for bridal shower, house warming or any occasion.