Feature:1. CORROSION RESISTANT MATERIAL: The body of T square ruler is CNC finished aluminum alloy, surface after anodized treatment, rust and corrosion resistant and durable2. ACCURATE MEASUREMENT: The carpenter work ruler come with accurate metric imperial double scale for easy reading to facilitate woodworking3. MULTI ANGLE MEASUREMENT: The T square ruler protractor is simple and practical, suitable for multi angle marking, parallel marking and other work scenarios4. SAVE TIME AND EFFORT: Crafting T square ruler feature adjustable angle markers that increase accuracy and save measurement time by moving and rotating the adjustable angle indicator to set any angle from 15 to 905. WITH PENCIL: Carpenter work ruler come with a mechanical pencil, can be used for line drawing, measurement, practical and usefulSpecification:Item Type: T Square RulerMaterial: Aluminum alloyUse: Line drawing, measurement.Package List:1 x T Square Ruler1 x Mechanical Pencil (Random Delivery)