Glas Purple Rose Nubby Glass Dildo. This is an exciting toy with tons of fun uses! Spiraled purple glass is covered with raised nubs, making the Purple Rose great for clitoral and G-spot stimulation, vaginal masturbation, anal play and couples play. Features: Fracture-resistant, Hypoallergenic, Easy to clean, Retains heat and cold for increased stimulation, Compatible with all lubricants.