Mixing Bowls with Airtight Lids Set, 26PCS Stainless Steel Khaki Bowls with Grater Attachments, Non Slip Bottoms & Kitchen Gadgets Set, Size 7, 4, 2.5, 2.0,1.5, 1QT, Great for Mixing & Serving Snubbull it is integrally formed with 6943940724053 it is integrally formed with high hardness It allows users to identify any misalignment or wear in the machinery and make necessary adjustments to maintain optimal performance NON SLIP SILICONE BOTTOMS: The rubber on the bottom of the mixing bowls is for gripping and staying put which prevents sliding on the countertops when mixing and also protects the desk from high temperatures especially oil stains