360 degree protractor measuring tool for home teaching, classroom, office, etc. Wide uses. A must-have for architects builders, electrician, teachers, interior designers, engineers, students, etc. Easily meet your different needs, bring more conveniences, give you a pleasant using experience. Features -Color:Transparent -Material:Plastic -Size:20.50X8.00X0.20cm/8.06X3.14X0.08in - Suitable for most students to use, assisting them in learning math and geometry, also suitable for teachers to use. - Transparent color design with clear scale, so convenience to read and allow you to smoothly draw lines. - 360 degree protractor to meet your different drawing and drafting needs, provide more flexibility and probability. - Protractor with clear scales is easy to read, allowing you to smoothly record angles for quickly measuring and drafting. - This 360 degree protractor is a helpful tool for most designers, engineers, math teachers and students. Package list: 4 x Angle Rulers