[2-in-1 Rafter Square - Construction] Crafted from electric wood board, this rafter square tool boasts double-sided laser engraving that is resistant to wear and tear. Speed rafter square with level robust construction ensures and reliability in various working conditions. [Wood Positioning Triangle Ruler - Adjustable 2-In-1 Rafter Square Sliders] The adjustable features adjustable positioning blocks that offer flexible positioning and can be easily removed. Positioning triangle ruler with a hole diameter of 4.5mm, it is recommended to use a 3-4mm drill bit for accurate hole positioning. [Carpentry Measuring Layout Tool - 2-in-1 Functionality] Beyond being a mere measuring ruler, carpenter square also serves as a 2-in-1 connector for hole drilling, adding convenience and practicality to its design. Innovative rafter square tool equipped with multiple sliders, it allows for easy adjustment of slider positions based on the depth of cabinet side panels, facilitating precise hole drilling and screw insertion. [Innovative Rafter Square Tool - Seamless Solid Base] Designed with a seamless solid base, this rafter square tool ensures a consistent fit with no space between the base and the ruler. 2-in-1 rafter square smooth and delicate guarantees user comfort and durability, preventing hand abrasions during use. [Positioning Triangle Ruler - Versatile Application] The positioning triangle ruler is a versatile tool suitable for precise measurement, drilling positioning, and marking lines. Carpentry measuring layout tool is multifunctional capability makes it indispensable for various tasks. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Aluminum alloy Size:B:300x530mm Package Contents: 1 * Triangle Ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.