Treeline Blackboard 45 Degree Set Square Ruler  (Black)

Treeline Blackboard 45° Set Square – Single Unit Achieve clean, accurate lines every time with the Treeline Blackboard 45° Set Square. Designed for use on blackboards or paper, this versatile tool is ideal for maths, geometry, drafting, design and technical drawing. Made from durable, lightweight plastic, it is easy to handle, resistant to everyday classroom wear and simple to wipe clean. This 45° set square provides a precise right angle and 45° angle, helping learners and professionals produce clear diagrams, charts and illustrations. Perfect for teachers, students, architects and office staff, it fits easily into bags, desks or storage trays. Product Details: • Contents: 1 × Treeline Blackboard 45° Set Square • Material: Strong, durable plastic • Angle: Accurate 45° with right angle • Colour: Blackboard-style finish, easy to see against the board • Use: Ideal for school, office and home projects • Application: Drawing straight lines, angles, shapes and technical layouts Key Features: • Precise 45° angle for reliable, repeatable measurements • Smooth, easy‑grip edges for comfortable handling • Lightweight for effortless use during long lessons or drawing sessions • Suitable for chalkboards, whiteboards and paper surfaces • Simple to store in classroom racks, drawers or stationery organisers Safety Information: Handle with care. Not a toy. Keep out of reach of small children.