High quality: The ceramic hole locator is made of high-quality stainless steel, with high hardness, not easy to deform and rust. Design: Fixed screw cap with flexibility, 360 degree free adjustment to prevent error and improve working efficiency. Function: Convenient tool that's used for opening and positioning when working with ceramic and wood installation. Easy to carry: Excellent portable tool, easy to fold and accurate measurement, save space and support simultaneous measurement of two or more holes. Wide application: The glass hole locator is very suitable for drilling glass bricks, marble wood and plastics. It is a very practical tool for home decoration, architectural decoration, and electrical and mechanical maintenance. Product Description Specification: Material: stainless steel Color: silver Diameter of the hole: 25mm, 40mm, 45mm Total length: approx. 400mm / 15.7in Hole Locator Size: Approx. 40.1*8 cm / 15.8*3.2 in Ruler Size: Approx. 30*6.5cm / 11.8*2.6 in Weight: Approx. 363g / 12.8 oz With Scale Comes with a clear scale to reducing the time to draw the line and find the position. Multifunctional With different hole support for measurement two or more holes at the same time. Easy to use Just place onto your work area, slide the rulers into the shape, and tighten the screws.