Made of plastic, high polished smooth surface metal, rust resistant, can be long time wearing. , Gauge: 16G(1.2mm), Inner Diameter: 10mm. , Fastening: Clicker , The material we use is soft and non-allergenic; the surface is smooth and will not scratch the skin; suitable for many scenarios. , 8 pieces clear rings and 8 pieces colorful plastic rings in a set; come with one free gift velvet bag. , Simple and elegant piercings for daily jewelry, showing your personality,also can as a gift for Birthday, Christmas Day, Anniversary Day, Valentine's Day etc.