● Found during room整理. ● Thank you for your consideration. ● It costs about 3,000 yen when new. ● Uses: Convenient for measuring angles of 180 degrees or more, and for drawing. ● Features: A hole is provided in the center of the circle, convenient for positioning and marking. ● Name: The product name is "Benly Plate No. 25", and the model number is KM-1004. ● Scale: The outer circumference has angle (degree) scales, and the inner side has mil (M) scales, and notations such as "1m/10000" indicating the scale are also seen.