Hexagonal flat design for stability and accuracy: The hexagonal flat design enhances the stability and accuracy of the square ruler fixture. It is designed specifically for staircase design and quantification work, making measurements more precise and convenient. Multi functional tool: Not limited to stair quantification, the square ruler fixture can also be used for various right angle measurement and layout work, improving work efficiency and suitable for different occasions and needs. Widely applicable: Suitable for stair beam layout and support beam layout, it can be easily set on any material, especially useful when dealing with wood and space. aluminum alloy structure: Made of quality aluminum alloy, durable and lightweight, ensuring longterm stability and providing reliable support for accurate measurement. Use scenarios Staircase design and quantification: Ideal for staircase design projects to achieve accurate stringer layout and precise spacing during quantification work. General right angle measurement and layout: Can be used for various right angle measurement and layout tasks in construction and interior projects, improving efficiency. Beams layout and on material work: Suitable for stair beam layout and support beam layout on wood and other materials, particularly in spaceconstrained environments.