Nunc Cell Scrapers have a faceted joint between the scraper blade and handle. This joint allows the scraper blade to be turned to a variety of angles. One can choose to scrape windshield wiper-fashion or hoe-fashion. Multiple blade positions allow efficient scraping at odd angles around the edge of a flask. The large scraper blade is taller to provide a larger off-set from the handle. The off-set enables efficient scraping of larger straight-necked flasks. Both sizes are individually sleeve-packed and radiation sterilized.