Glas Amethyst Butt Plug. Glass is hard, durable, and smooth as silk when properly lubed, the surface becomes incredibly slick. Our unique droplet beaded design is perfect for increasing levels of anal penetration and pleasure. Hi-durability handle for greater control and easy retrieval. Fracture-resistant and hypoallergenic, this toy can be easily cleaned. Retains heat and cold for increased stimulation. Compatible with all lubricants. 7.5 inches by 2 inches. Can safely be inserted 5.5 inches.