The Vibra Slim Plug's inner weight rolls with your movement to stimulate muscles and add sensation! The Ultrasilk T Silicone, with it's 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. This plug has a 8.9 cm length (7 insertable cm) and a 2.5 cm width for the perfect size during play. Made with smooth, body-safe silicone, this plug contains no phthalates, paraffins, or latex. - 8.9 cm Length (7.6 cm Insertable) x 2.5 Inch Width - Emits Vibrations via Movement of an Inner Bearing - Slim Anchor Base for Comfort - Does Not Require Batteries - Made from Satin Smooth, Body Safe Silicone. Contains no Fragrances, Phthalates, Paraffins or Latex