"O" BODY DESIGN: The miter saw protractor is of O shape design enabling the full 360-degree rotation of the saw protractor goniometer, ensuring smooth and precise reading of inner/outer angles. Precision laser-engraved scales ensure the dial is clear and easy to read directly Easy to readthe high precision miter saw protractor is designed with an engraved dial and two easy to read scales, making reading speed fast and not so complicated to use Accurate MeasurementMitre saw protractor has minimal errors with a great degree of accuracy for miter cuts/single cuts while eliminating unnecessary calculations. Find the precise setting for your miter saw that can slide without errors and without tedious calculations. Rotate a full 360 degrees to find the correct angle Size informationthe multi-function miter saw protractor is about 32 x 10 x 8 cm; With its lightweight and compact size, it is easy to carry and store Wide ApplicationThe miter saw protractor is suitable for all jobs that need to measure angles. Eg: for miter cuts, single cuts, compound miter cuts, roof pitches, and metal processing, perfect for Carpenters, Plumbers, all construction industries, and more Material: plastic Color: as the pictures shown Size: 32 x 10 x 8 cm Package includes:1 x Miter saw angle ruler.Items from Sheng Xinshun's shop