This tool draws two parallel lines simultaneously, with the spacing between the teeth adjustable in 5mm increments. It fits comfortably in your hand. When transferring patterns to fabric, you can draw both the "sewing line" and the "cutting line" at the same time. Please use the serrated and smooth teeth interchangeably. Materials: Teeth: Steel (nickel-plated), Polyacetal; Handle: ABS resin; Case: Olefin resin Made in Japan Package size: 55 x 180 x 16mm Product number: 21-051 Suggested retail price: 1,375 yen (including tax) A wooden-handled roulette wheel is included as a bonus. Thank you for viewing.