This professional set square is built to last. Therefore it is perfect for the home sew-er who is looking to upgrade their tools! This is a metric graders square which means it is an essential tool for grading and altering pattern, or indeed drafting your own from scratch!

• Metric Set Square/Grading square
• 3mm thick durable clear plastic
• Measures 30.5 x 30.5. 43.5cm along the diagonal edge