This Teacher's Triangle Ruler Set with Magnetic Triangle Board is a teaching tool for geometry classes. The plastic triangle board with a magnetic design allows teachers to demonstrate geometric concepts. The detachable handle makes it convenient to carry and store. Made of high-strength plastic material, this tool is durable and long-lasting.- Color: Yellow - Material: Plastic - Size: 50.70 x 29.80 x 0.50 cm / 19.93 x 11.71 x 0.20 in - Easy classroom demonstrations: the magnetic design allows for convenient classroom use when demonstrating geometric concepts - Detachable handle for convenient storage and transportation: the included handle can be removed for easy storage and transport - Made of high-strength plastic material for durability: constructed with durable plastic to support long-term use - Suitable for teaching geometric concepts: designed to assist in teaching geometry in classroom settings - Offers versatility for a range of teaching applications Package list: 1 x Set Square