[Accurate Measuring Angle]: This Centering Square Finder Is Mainly To Help You Accurately Measure The Angle, So As To Achieve Precise Cutting On The Board[High Carbon Steel]: This Aluminum Of Research Center Woodworking Uses High Carbon Steel, Which Has Good Strength And Durability[100 x 70Mm]: This Square Metric Centering Gauge Square Speed Dial 100 x 70Mm , Its Weight Is About 196G[Grinded Surface]: The Surface Of This Center Finder Tool Adopts Polishing Technology, Which Is Smooth And Does Not Hurt Your Hands[Laser Engraving]: The Surface Of This Speed Square Metrich Is Laser Etched And The Numbers Are Accurate, Which Is Very Suitable For Carpenters, Builders And Diy Enthusiasts. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin