1.By tightening the wing nut in the center of the adjustable arm, the expandable multi-wheel cutter has a locking mechanism to ensure precise and consistent cutting. 7-wheel size: maximum / minimum tensile elongation (29-5 / 8 inch2-3 / 4 inch); wheel track maximum / minimum (4-1 / 8 inch / 1/2 inch); wheel diameter: 2-1 / 8 inches; full length: 9-5 / 8 inches. 2.Material: This cutting machine is made of food-grade stainless steel, which is durable, rust-, mirror-polished and shiny. 3.Design: The distance between each grinding wheel can be adjusted, the fixed cutting width is different, and the most diverse cutting options can be realized. By tightening the wing nut in the center of the adjustable arm, the cutting wheel can be locked in place, and accurate. 4.Versatile use: It can evenly slice a brownie / chocolate bar to save time on cookies, dough, pizza or cakes and pastries. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.