These are ideal for beginners who are trying out the joys and stimulation of anal play. For a quick and easy anal play session, consider using the Anal Silicone Jiggler. The Anal Silicone Jiggler consists of 5 balls that taper (increase) in size from the beginning (.31" in diameter) to the end (1.35" in diameter). The entire jiggler measures 7" in length. Made from silicone, which is anti-bacterial and non-toxic.