iplusmile 10 Pcs 360 Degree Circle Protractor with Swing Arm 4 Inch Plastic Angle Finder Measuring Ruler for School Geometry Drafting and Woodworking Classroom Bulk Sky Blue
360 DEGREE PRECISION MEASUREMENT: Unlike standard half-circle protractors, this full-circle design allows students and professionals to measure angles up to 360 degrees without repositioning the tool. The integrated swing arm provides a precise guide for drawing arcs, plotting coordinates, and verifying angles in geometry, engineering, or architectural drafting
SMOOTH SWING ARM INDICATOR: Features a rotatable central arm that pivots 360 degrees, acting as a clear visual guide for accurate angle identification. This mechanism solves the frustration of lining up static rulers, making it ideal for teaching complex math concepts, measuring reflex angles, or drafting circular diagrams with ease
DURABLE CLASSROOM PACK: Constructed from quality, shatter-resistant plastic, these protractors are built to withstand daily use in active learning environments. The 10-piece bulk set is a cost solution for teachers, homeschool, and math clubs, ensuring every student has reliable access to essential measuring tools
COMPACT 4-INCH DESIGN: Measuring 10cm (approx. 4 inches) in diameter, these protractors are perfectly sized to fit into standard pencil cases, pockets, or geometry sets. Their lightweight and portable nature makes them convenient for on-the-go measurements in woodworking shops, art studios, or outdoor studies
CLEAR & READABLE MARKINGS: Designed with high-contrast, easy-to-read degree graduations that resist fading over time. The transparent plastic construction allows users to see the text or figures underneath, ensuring perfect alignment and error-free readings for homework, technical drawing, and craft projects
