These vibrating beads have a rounded tip for a smooth entry before gradually expanding to four beads of 2.5cm (1") joined by a flexible but sturdy shaft. The powerful whisper-quiet motor is controlled by the multi-speed dial at the base. Insert as many beads as you feel comfortable with, before gently tugging them out for even more stimulation, particularly as you approach climax. The Anal Power Beads are part of the Anal Fantasy Collection by Pipedream Products. Requires 2 x AAA batteries.