HIGH QUALITY: The ruler is made of stainless steel, practical and durable. GOOD DESIGN: Designed with a locking button to lock the angle in any position. ADVANTAGE: Clear scale, quick and easy to read measurement. Available in three sizes, meeting your different demands. EASY TO USE: 2-in-1 ruler and protractor for easy measurement. Product Description 0-180 degrees Angle finder gauge goniometer protractor angle protractor bevel goniometer stainless steel digital inclinometer goniometer digital angle measurer 0-180 free rotation 0-180 range can be arbitrarily adjusted and measured, marking Adjustable screw design Fixed readings , screws can be tightened, easy to use Special process laser engraving Special technology, clear, precise and convenient reading High quality stainless steel Made of stainless steel, sturdy and durable, not easy to rust Soft and precise edge grinding The edge is smooth, the angle of tilt, the measurement is accurate, the tilt angle is sharp, be careful when using Designed with a locking nut for locking angle in any position. 2-in-1 ruler and protractor for easy measurement. Quick and easy reading of measurement with clear display. Available in three sizes, meeting your different demands.