Wide application: the contour gauge is a useful tool for measuring and copying irregular objects such as corners, frames, columns, pipes, bodywork, etc. Ideal for laying tiles, carpets, planks, laminates, etc. With 10 inch shape duplicator, you can easily duplicate the shapes. It is a good helper for carpenters, woodworkers and architects to save time and improve work efficiency. Widely used in carpentry, construction, renovation, etc. Easy to use: Slide the contour gauge onto the object to copy the shape. Lock the copied shape with metal lock. Mark the copied shape on the carpet or plank. Cut off the additional carpet or plank to match the object. Our contour gauge is equipped with a metal lock for long-term use, which is more durable than a plastic lock. It can fix the shape in place for precise measurement. Extra wide design: the length is 25 cm/9.84 inches, the width is 13 cm/5.12 inches. Compared to other contour gauges, our contour gauge is wider to copy deeper shapes. It can meet more measurement requirements. Our contour gauge comes with a mini key for convenient adjustment. If the contour gauge dissolves after prolonged use, you can use the mini wrench to adjust the tightness of the plastic pins. Good material: the contour gauge is made of high-quality aluminium core and high-quality ABS plastic pins, which are environmentally friendly, rust-proof and durable. The thickness of each pen is 0.06 inches/0.15 cm. It can provide you with precise measurement. The 45 degree pen design can also improve the measurement accuracy. Our contour gauge has a clear inch and centimetre scale on both sides to provide accurate readings. Product Specification: Type: contour gauge, shape duplicator Material: ABS plastic pins + aluminium core Size: the length is 25 cm/9.84 inches, the width is 13 cm/5.12 inches. How to use: Slide the contour gauge onto the object to copy the shape. Lock the copied shape with metal lock. Mark the copied shape on the carpet or plank. 4. Cut off the additional carpet or plank to match the object. Package contents: 1 x contour gauge with lock. 1 x mini key.