Longterm use: Featuring a sturdy metal base combined with density material, this protractor ensures improved durability, maintaining its shape and functionality through repeated use over time. Optimized measurement experience: The 180degree semicircular arc surfaces include an enlarged digital , enhancing visibility while the precision scale ensures exactness in every measurement taken. Classic handcrafted finish: The handpolished process delivers retro aesthetics, ensuring a strong decorative effect that complements its practicality as a tool for accurate angle marking. Multiple applications: Combines utility for mathematics teaching assistance, accuracy in engineering drawing verification, and creativity in artistic composition, showcasing multiscene adaptability that meets the demands of varied professional and educational environments. Use scenarios In mathematics classrooms, use for teaching angles and practicing precision measurement with students. In engineering drawing and drafting, employ to verify angles on technical plans and CAD outputs. In art and design projects, apply to plan layouts, geometrybased compositions, and decorative angle marking.