Keywords
accuracy, black, close-up, color image, differential focus, drafting, drawing, education, equipment, hand tool, indoors, instrument of measurement, learning, mathematics, measuring, nobody, number, office equipment, orange, organization, planning, plastic, ruler, see-through, set square, shape, single object, stationary, studio shot, transparent, triangle, unit of measurement, unknown, vertical, white background, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, 339030