You are buying a stainless steel 6g body piercing needle receiving tube.  These tubes can accept up to a 10g needle.  One end has a 45 degree angle and the other is end is a flat 90 degrees. 

These tubes are of high grade stainless steel; the tools commercial piercers use.  Professional grade for regular use and autoclaving.

Buy with confidence; you will receive the item as described.  Check my eBay store, Scrap Metal 23, for other listings.