Tendril Thruster Fuck Machine Sex Machine by Doc Johnson Anal Pull Beads which can damage the stretchy Colour:Pistachio Cream which can damage the stretchy fabric Feature Wavy Urethral Penis Plug Standard Smooth Steel Plug Silicone Urethral Catheter Stimulation intensity High—wavy texture creates intense nerve response Moderate—smooth surface provides basic sensation Low to moderate—softer material reduces intensity Material durability Permanent—medical grade steel withstands repeated use Permanent—durable but lacks textured design Limited—silicone degrades over time with heat sterilization Customization Yes—two interchangeable glans rings included No—fixed design only No—single piece construction Best for Advanced users seeking intense The Doc Johnson Tendril Thruster Mini delivers intense stroking sensations in a compact Charge the machine fully before first use using the included USB cable