Basic Info: * Official Info: Anhui Wenjie Sporting Goods Co., Ltd [http://www.wenjiesport.com/products1.asp?id=136] * Available for Sale from various retailers on TaoBao [www.taobao.com]: Purchased one tube from 钻级卖家 [https://item.taobao.com/item.htm?id=23648324207&_u=22qd5q8s3a2d] * Duck Feather * Price: ~58 RMB or