Features: Precisions Metal compasses Set with Plastic Case, metal and plastic construction ensures accurate geometric drawings while remaining for portability, featuring a protective needle cap and multiple tool versatility in organizers. Engineered with safety tipped needle guard to prevent accidental injuries and ergonomic antislip grip, this geometry toolkit includes interchangeable attachments for circles, arcs, and technical measurements. Essential for students completing math assignments, architects drafting blueprints, artists creating detailed sketches, and educators demonstrating geometric principles in classrooms. Perfectly for school projects, engineering diagrams, art studio work, or office presentations, with all components neatly stored in shock resistant carrying case for messfree mobility. Achieve professional precisions across paper, canvas, or drafting boards using this corrosions resistant metal compasses set, with swivels adjustable arms and replaceable leads refills for endless creative applications. Specifications: Materials: Plastic,Metal Size:as picture show Set: Basic 8Pcs set, Standard 8Pcs set, Standard 9Pcs set(optional) Package Includes: 1Set Compasses Ruler note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.