Treeline Blackboard 60 Degree Set Square Ruler  (Black)

Treeline Blackboard 60° Set Square – Each Achieve clean, accurate angles every time with the Treeline Blackboard 60° Set Square. Designed for use on both blackboards and paper, this reliable drawing tool is ideal for maths, geometry, drafting, design, and technical illustrations. The durable, lightweight plastic construction makes it easy to hold and control, even during extended use, while resisting everyday classroom and office wear and tear. Perfect for teachers, students, architects, engineers, and hobbyists, this 60° set square ensures precise lines and consistent angles, helping to improve clarity and presentation in diagrams and drawings. Its blackboard-style design offers excellent visibility when used with chalk or markers, and it stores neatly in desks, pencil cases, or classroom storage units. Use it at school for lessons and exams, in the office for presentations and planning, or at home for projects, crafts, and homework. Each pack includes one Treeline Blackboard 60° Set Square. Handle with care and keep out of reach of small children.