The Vibra Plug’s inner weight rolls with your movement to stimulate muscles and add sensation! The Ultrasilk T Silicone, with its silky smooth feel, warms with your body heat beautifully. Your motions propel a ball bearing inside this smooth silicone with a comfortable anchor base plug perfect for adding new sensations during anal play. This plug has a 8.9 cmh length (7.6 cm insertable) and a 4.4 cm width. Made with body-safe silicone, this plug contains no phthalates, paraffins, or latex. – 8.9 cm Length (7.6 cm Insertable) x 4.4 cm Width – Emits Vibrations via Movement of an Inner Bearing – Tapered Design for Easy Insertion, Slim Anchor Base for Comfort – Does Not Require Batteries – Made from Satin Smooth, Body Safe Silicone. Contains no Fragrances, Phthalates, Paraffins or Latex.