The color coded center groove easily identifies scale graduations. Measurements are precision-etched into a durable laminated plastic for accuracy. Comes in a protective case. Engineering ScalesColor coded, 10; 20; 30; 40; 50; 60 parts per inch. Ruler Type: Triangular Scale; Length: 12"; Standard Scale: 10"; 20"; 30"; 40"; 50"; 60"; Material(s): Plastic. Features The color coded center groove easily identifies scale graduations. Measurements are precision-etched into a durable laminated plastic for accuracy. Comes in a protective case. Manufacturer Chartpak Categories Chartpak Office Supplies, Chartpak Office Accessories, Chartpak Drafting Kits MPN CHA235E Model# 235E UPC Code 014173154965 UNSPSC Code 0 Global Product Type Ratio Scale Rulers Length 12" Material(s) Plastic Post-Consumer Recycled Content Percent 0% Pre-Consumer Recycled Content Percent 0% Ruler Type Triangular Scale Special Features Engineering ScalesColor coded, 10; 20; 30; 40; 50; 60 parts per inch. Standard Scale 10"; 20"; 30"; 40"; 50"; 60" Total Recycled Content Percent 0% Assembly Required No assembly is required Contains Recycled Materials N Green Product N Unit of Measure EA Item Weight 1.4 Ships via UPS Y Carton Pack Quantity 12 EA Box Pack Quantity 12 EA This item is sold by the EA GTIN Item 014173154965 UPC Retail 014173154965 UPC Carton 10014173154962 Brand Chartpak Brand Contact 1-800-628-1910 Manufacturer Stock No. 235E Country of Origin JP UNSPSC Number 44111807