This article is within the scope of WikiProject Archaeology, a collaborative effort to improve the coverage of Archaeology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
The introduction of the article states "They are usually made of flint or chert and are typically one centimetre long and half a centimetre wide. " This is contradicted by the illustrations. Can anyone suggest a more accurate desctription? 18.104.22.168 (talk) 19:37, 12 August 2010 (UTC)