Your movement controls the motion of the balls of our Duo Silicone Weighted Butt Plug: when you're bouncing up and down, so are they. When you're rocking back and forth, they're rolling with your motion. (You can see some obvious applications for this, right? Our favorites include spiced-up spanking and holding a vibrator against the base.)

• Made in Germany
  
• Weighted inner balls bump and roll when you move
  
• Tapered tip for easy insertion
  
• Base designed to fit perfectly between your cheeks
  
• Best when used with water-based lubricants
  
• Waterproof
  
• Materials: Silicone (body-safe, anal-safe, non-porous)
  
• Dimensions: 4.96 inches long (4.72 inches insertable) x 1.5 inches at widest point; smaller ball is 1.26 inches wide; larger ball is 1.42 inches wide
  
• Weight: 12 ounces