This picture shows both sides of ten examples of Clovis culture end scrapers that were found on the Bostrom site in St. Clair County, Illinois. They represent typical examples. Most of them have a tear-drop shape and the widest end is the working edge. The scraping edges are convex and some of them have a sharp corner that might be referred to as a spur. The lower two rows clearly show that they were all unifacial tools that were made on either flakes, or blades that were struck from prepared cores. The scraper in the center of the second row is made of Burlington chert and measures 1 7/8 inches (4.7 cm) long.