made of stainless steel, sturdy, durable, anti-rust, easy to clean, can serve you for a long time Sturdy Structure:This cutting board rack is made of thick 304 stainless steel, quite compact and sturdy to use, it can last long time without the worrying to rust. Multi-functional shelf: Can be used for organize cutting boards, chopping boards, cookie sheets, baking sheets, trays, flat pans and more, keep your kitchen tidy and organized. Space Saving: compact does not take up space, neat and clean storage, get rid of the messy double-cell independent partition storage, ventilation and leaching clean and sanitary. Welded solid: 6mm thickened solid stainless steel welded molding, stable and solid, compact shelf with two 1.0 inch wide slots, can accommodate two cutting boards with a thickness of less than 1.0 inches. New upgraded model has non-slip bottom with non-slip rubber tubing, which prevents the shelf from sliding on the countertop without scuffing the countertop, cutting boards can be inserted vertically or horizontally into the slots.