Rimba Electro Play bipolar penis harness made of genuine nappa leather This handmade penis strap can be fastened with snaps at 2 different sizes. The metal studs on the inside are connected to the power wires. Wear this item tightly on the skin to apply a shock. Always be careful. Do not use if the skin is broken or irritated, if you have heart problems or are pregnant. Tip: Use Rimba contact gel for best results. This item has a 2.5mm jack plug that plugs directly into all Rimba Power Box devices.