The Glasswear Studios Custom Order Pyrex Glass Concave Back Labret with A Micro Flare is handmade from high-quality Pyrex Glass. This labret is perfect for those with stretched labret or philtrum piercings. Crafted with a concave back and a micro flare for a comfortable fit, this piece offers both style and comfort. It's a great solution for people that want to be sure that their jewelry is secure without having to wear an o-ring.