Warm up your favorite Tenga masturbator with the Tenga Hole Warmer. This reusable, electricity-free warmer heats up the inside of the masturbator making it more realistic than ever. Simply bend the metallic disc inside the hole warmer to activate it and then insert it into your Tenga toy. International sex toy company Tenga does it again with the Tenga Hole Warmer, making masturbators even more realistic.