■ Precision Gradient Ruler 22cm Type As shown in the 4th photo, the plastic is damaged, and a new plastic part is being made. It can be used without any problems. ・This is a retro item, and although there is no marking, I believe the manufacturer is Muto Kogyo. ・Base: 17cm x Height: 21cm x Hypotenuse: 26cm Precision Gradient Ruler with Hypotenuse Ratio Scale Material: Acrylic resin Please purchase with the understanding that this is a repaired item, and the price has been reduced accordingly.