This is the original electro sex penis strap as designed and made by Rimba in the 90s. This penis strap is made of 2 layers of real leather and all metal studs are connected to the power wires. This penis strap comes with a 2.5 mm mono jack plug and is Bi-polar. Handmade at Rimba in the Netherlands. For the best result we recommend to use the special electrosex contact gel.