Metal locking system: Finest aluminum is used in contour gauge with lock for solid built quality. You can easily take precise measurements of outlines, corners, edges for smooth finishing and a perfect fit. | Pins tightness adjustment screws: With built-in screws in our contour duplicator gauge, you can easily adjust pins tightness as per your needs. No need to go for other overpriced profile gauges that come with an Allen key that is difficult to use and store | Extra wide contour tool: With 5-inch-wide fingers and 2.9 Inch depth of impression, this ultimate large contour gauge profile tool can copy, trace any odd shape, angle, and trim outline of even bigger objects and deeper | Sturdy ABS material: The contour gauge outline ruler plastic pins are tough, durable, scratch-resistant, and rust-proof for long-term use. The plastic material used is of high quality for a premium look and fee | Perfect gift: This reasonably priced cool toolx duplicator tool is an ideal gift for your husband and father. It’s designed in the USA by Tool Factory for DIY projects of woodworking gap, carpentry, flooring, moldings, metalworking, wallpapering, auto body, cutting & tiling