Shaped for Easy and Comfortable Insertion Three Graduating Sizes to Train Comfortably Firm Base Stops Over Insertion Made of Puria™ Silicone and Ultrasilk® Smooth. Contains No Fragrances, Phthalates, Paraffins or Latex. 3 Sizes: Small: 3.25" Length x .75" Width / Medium: 4.25"Length x 1" Width / Large: 5.25" Length x 1.25" Width