PolyFlex (1.75 mm; 750g) Yellow<img src="http://ecx.images-amazon.com/images/I/41et7kzqcyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51uFGkggRDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31lnJTp9kVL.jpg" noproxy>