The Pocket Scientist - Wallet Science Ruler Scale and Unit Conversion Reference - 3 inch 85 mm Homework Helper for College Students and PhD Graduates - STEM Class School Supplies

PACKED WITH REFERENCE INFO: Never look up a basic science equation, physical constant or unit conversion again. EQUIPPED FOR TECHNICAL DRAWINGS: Always be ready to take a quick measurement or sketch a new design accurately with the ruler, protractor and angle drawing tools. NEVER OBSOLETE: Give a professional, student or budding young scientist a unique, thoughtful and practical gift that will stay with them for many years from physics homework to cutting-edge research. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.