Glas Quintessence Beaded Glass Anal Slider. Glass is hard, durable, and smooth as silkproperly lubed, the surface becomes incredibly slick. Our unique droplet beaded design is perfect for increasing levels of anal penetration and pleasure. High durability handle for greater control and easy retrieval. Features: fracture resistant. Hypoallergenic. Easy to clean. Retains heat and cold for increased stimulation, Compatible with all lubricants.