Bought this after reviewing other possibilities.  I do a lot of trail running and my shoes always get soaked with mud and water.  After scrubbing and washing, I put them on this shoe dryer and it takes care of the rest.  It will dry 4 shoes/boots at the same time.  Built in timer goes up to 180 minutes of warm (100 deg) or room temp air.  Doesn't get too hot, but just enough to dry shoes.  The product in the picture is with the boot attachments on the rear dryer pedestals, but they also come off to give 4 pedestals to dry shoes, just like the front ones.  The boot attachment is great for larger items, but also works great at circulating the air through normal shoes.  Very happy with this purchase.