At the core of the Doorknocker ring is the impressive "Doorknocker hinge" which lets you interconnect rings of different sizes from either our Slim Ellipse line or our Iron Ellipse Line to create a Doorknocker ring sized perfectly for your anatomy (something no other cage or double ring can do). Additional hinges can be used to create fully closed cages that incorporate a ball stretcher ring as well. The (Patent Pending) Modu-Cock system by Hardwear is the only system of modular inter-hinging cockrings in the world.
Add a "Thunder Hinge" to your Doorknocker to bring thunderous vibrations into the mix with your ring. Experience 10 speeds of thrilling sexual vibrations with tremendous pulse and wave patterns. A second "Thunder Hinge" can outfit both your rings with vibes taking you up 20 speeds of rumble in the jungle. The vibes used with these hinges are powerful, sending vibrations through the rings and through your genitals, turning your supercharged bone into a live action dildo your partner won't ever want to climb off of.
