Steel Basicline. This nipplebarbell has a thickness of 1.
6 mm and is made of 316L surgical steel. The entire bar for the chest represents a key. On the one side,is a curved heart attachment, instead of a ball, which has a white little crystal in the center. It can not be unscrewed. On the other side, is the shape of the key as a screw-on element. This jewelery can be easily sterilized and is absolutely safe for the allergy sufferers because of the skin-friendly nature of the material.