The gypsum board cutter is made of aluminum alloy and TPR plastic, compact in structure, strong, wear resistant and durable to use. With 5 meters tape measure inside, helps high-precision cutting and drawing circles and lines quickly and easily, improving work efficiency. One press to lock, precise scale. Retractable blade, do not touch the blade, will not hurt you. Suitable for cutting a variety of materials: plasterboard, foam board, KT board, cardboard. Easy cutting, environmental protection and dust-free. Built-in storage slide box, more convenient to carry the slide. Save time and effort. Provide 1 pencil and 5 extra blades for replacement.Innovative 3-in-1 cutting tool Allows you to measure, draw circles and draw straight lines, and cut drywall for precise marking and positioning . Easy cutting, dust-free and no pollution. Measurement function Draw circles and straight lines Cut drywall Easy cutting Dust-free No pollution Built-in features The heavy-duty built-in tape measure is 5 meters long and comes with a safety lock feature. One push to lock, accurate scale. Retractable blade, easy to use, won't touch the blade, won't hurt your hands. Built-in 5 meter tape measure accurate scale Lock function One push to lockRetractable blade