Rimba Electro Play. This is the original first conductive, bipolar cock strap as we have designed and made it in the late 90's. This penis strap is made out of 2 layers genuine leather and all the metal studs in the inside are connected to lead wires. This strap is adjustable and closes with press buttons. This penis harness comes with a 2.5 mm mono jack plug and is Bi-polar. Handmade by Rimba in the Netherlands.