Review on 📏 Adjustable Lock Contour Gauge Profile Tool Set - 10" & 6" Wide Plastic Duplicator Ruler for Precise Irregular Shape Copying - Ideal for Corners, Woodworking Templates, Tile Measurement by Michael Gupta

This tool is very easy to use. Although a few plastic sliders were bent when it arrived. I assume it was the packaging. However, this was an easy fix. I just move these sliders around the middle and open the tool. Just be careful not to over-tighten the screw when reassembling to allow the sliders to move. It has small gaps when moving, but once you press it, it stays on. The fact is that they are made of plastic, so they are not that difficult to adjust. I like the rulers on both sides and the slider tips have different profiles. This helps when you have different heights of the shape you want to edit. The lock is very good and holds position. The price is reasonable. There are many similar products out there, but I love these tools, even with a little tweaking.