The product attaches to the inside of the lid to warm the seat when the lid is down. One issue you may run into is that if you live with someone who forgets to put the lid down, the product won't work as anything but a back warmer. Since the pad heats the surface of the seat, once you sit down, the warmth is pretty much a 5-10 second pleasure. The real issue I have with the product is the temperature control settings. There are three to choose from: 1.hardly enough to warm the seat, 2. burning hot, 3. I haven't tried three because I am afraid of melting the lid to the toilet. For the price, I would hope that there was something better than the Toastie Tushie, but I could not resist buying this because the name is so appealing... damn marketing!