Durable and lightweight: collapsible square steel construction for easy storage and reliable performance in tough environments. Precise and consistent: designed to enhance craftsmanship with repeatable results, streamline workflow, and ensure projects meet a level of accuracy. Wide user base: suitable for engineers, woodworkers, craft enthusiasts, and students who require precise measurement capabilities in their projects. Versatile applications: ideal for construction, furniture manufacturing, crafts, and classroom education; adapts seamlessly to diverse applications for increased productivity and accuracy. Key attributes: function marking and measuring tool; compatibility suitable for a range of projects; size compact, collapsible; material steel; performance durable, lightweight, precise. Use scenarios: 1) Marking precise layout lines on lumber during cabinet or furniture builds. 2) Aligning hardware locations such as hinges or dowel holes in carpentry or construction. 3) Demonstrating measurement concepts in a classroom or workshop setting.