Glass material: Smooth surface, odorless, and safe. The glass material is not easy to contaminate with dust and is easy to clean. Multi-connected bead design: Enhances friction and can better stimulate the inner wall of the vagina or anus. Hot and cold stimulation: Can be warmed with warm water or cooled with ice water before use, so that you can get a different temperature stimulation. Suitable for a variety of people: Man and woman, homosexuality or personal, you can use this dildo to bring the anus or vagina a pleasure.