If you are looking professional protractor angle , then your research is over here. That's because our product can meet your need. Adopted of premium material, practical and durable for long time use, not easy to get deformed and bring you much convenience. Features - ColorSilver -Material:Stainless steel - Size: 38.00X24.00X2.00cm/14.93X9.43X0.79in - Our goniometer is made of high grade stainless steel material, which is stable and durable, professionally manufactured and highly reliable. Quality assurance, long service life. - Our product can take perfect measurements, transfer and track them to any material, no need to create a new template for each , and no need to measure the same angle repeatedly. - This goniometer is easy to fold and store, one-handed operation, and has a unique fastening mechanism. - Place it on your work area, slide the ruler to the desired shape, and tighten the screws. - Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 1 x angle