They are also called THANGLES
http://www.thangles.com/
http://shop.millhousequilts.com/brow...FSoZQgodhx3i4A
VIDEO:
http://www.youtube.com/watch?v=I4p-vpLScRw (The video show how to make qtr sq triangles using the same size thangle)
One $5.00 pkg will usually make a full quilt depending upon the pattern