Weiba Triangular Architect Scale Aluminum Scale Ruler for Blueprint Drafting Color-Coded Engineer Metal Scale Ruler Tri-Scale Gauge-Silver S-

NameTriangular Metal Scale Ruler Quanity: 1Pc Color:Black,Silver,Gold Materials: Aluminum Alloy Package Included:1x Triangular Scale Ruler Size:S Proportion: 1:20/1:25/1:50/:75/1:100/1:125 Large Proportion : 1:100/1:200/1:250/1:300/1:400/1:500 Product Feature: Aluminum Alloy Triangular Prism Metal Scale, Made of Aluminum Alloy, Precise Scale is Not Easy to Wear, Light and Hard, No Rust is Not Afraid of Falling, Three Colors, Six Ratios, Accurate and Clear Scale, not Easy to Wear, Used for Home Improvement, Engineering Drawings, Etc.