The Grillbot Replacement Stainless Steel Brushes are designed for automatic grill cleaning robots, specifically the Grillbot brand. This set includes three-piece brushed stainless steel brushes that are reusable, easy to clean, and dishwasher safe. The brushes are suitable for medium-sized grills and can be used on metal and porcelain surfaces. The replacement brushes are made of stainless steel, with a soft nylon handle for easy cleaning. With a sleek stainless steel finish and a weight of 0.44 pounds, these brushes are perfect for maintaining a clean grill for all your grilling needs. These are 2.75 inches long. New and never used.