Optimizes workspaces efficiency in geometry classes, blueprints sketching, craft workshops, and professional documentation preparation scenarios Compact folding design and construction make 5pack ruler set for space saving storage and repeated use in classrooms or environments Combines focused rounded edges with folding 15cm / 6inch measurement ranges, functioning both as practical stationery and organizational tool for pencil cases or desk drawers Features two color contrast for quick identification, metric / imperials markings, and reinforced hinges that maintain structural integrity through multiple folding cycles for students, architects, artists, and professional requiring measurement tool for drafting, technical drawings, or daily tasks, Manufacturer: HDOYTXXM