The case is made of skin-like liquid silicone for that ultra-realistic feel and is expertly sculpted to have a realistic look. This natural-feeling penis extension sleeve conforms to your erection with a comfortable, hollow shaft and testicle ring for a secure fit that won't move during play. The thick sleeve walls and raised knots offer them even more stimulation with each thrust. Characteristics: Submersible: YES Material:Silicone Color: Fresh color Pretty Love manufactures products with demanding quality standards, all of its products are designed in the United States and have a 1-year warranty on technical defects.