Master Series Invasion Silicone Urethral Sound Trainer Set


In stock


These flexible rods bend with the body, sliding down your shaft for that unique sensation that you crave. Each sound is double-sided, with a different sized girth on each end. The graduated sizes allow you to work your way up until your stretched-out piss hole can accommodate the largest rod! Made of premium, phthalate-free and non-porous silicone, these urethral sounds are easy to sterilize and body safe for an all new sounding experience. Each sound is 8 inches in length. The smallest has a diameter of .19 inches on one side and .23 on the other. The medium is .27 inches and .32 inches in width. The large is .34 inches and .38 inches in width.

  • Made of Premium Silicone
  • Flexible
  • Includes 3 Double-Sided Rods with 6 Different Diameters
  • Graduated Sizes
  • Non-porous and Easy to Clean

Product Details

Length: 8"
Small Width: .19" / .23"
Medium Width: .27" / .32"
Large Width: .34" / .38"
Phthalate Free
Material: Silicone

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