Features:Easy measurement between all metal buttons and screws and soft gaskets.For shaped tiles, you can easily cut out bricks like a-gap.Multi-function metal six-fold ruler with foldable rulers at every angle to meet your everyday needs.The angle of the scale can be adjusted, the nut can be tightened to fix the angle, and contour measurements can be made smoothly to avoid variations during the measurement and to ensure measurement accuracy.2 Units: CM and InchMade of aluminum alloy material, anti-fall,durable.Laser-calibration, high accuracy, clear reading.Can be used for ceramic tiles, glass, marble, wooden boards.This product is mainly used for tile opening and positioning, which is very suitable for laying tile work.Specification:Material: aluminum alloyColor: blackInstructions:1.First,placing the tool onto any surface and adjust the six rulers into your desired shape.2.Next,tighten the high-grade metal screws to secure your angle and use this desired angle as a reusable stencil for endless applications.3.Finally,once completed with your project, loosen the screws and put the ruler into your toolbox.Opening Hole Diameter:5-Hole-Type opening hole diameter: 25/40/45/55/75mm (0.95/1.57/1.77/2.16/2.95 inches)3-Hole-Type opening hole diameter: 25/40/45mm (0.95/1.57/1.77 inches)Package includes:1 x Tile Opening Locator with 6-Folding Ruler