These four scrapers were recovered from the Pratt/Wing site. The two scrapers on the left are made from Alibates chert from the Canadian River in the Texas panhandle. The small grey scraper is made from Florence chert from the Flint Hills region of Kansas. The larger scraper is also made of Florence chert, but this piece has been heat treated during an early stage of its manufacture to improve the chert's knapping qualities. Scrapers such as these were used to scrape hides and may have been hafted onto handles. The Pratt/Wing site was a Pratt Complex Middle Ceramic period village site in Pratt County.