Using these boots is a breeze. Just unzip the inner side zip closure to put them on or take them off. To light up the red LED lights, simply charge the boots via the USB port. There are different static and changing patterns in the skull eyes and heel area, so you can choose the one you like the most. When it comes to sizing, remember if you're from Australia, size up 1/2 or 1 size compared to your usual Australian size. As for maintenance, use a soft cloth to wipe the boots clean. Avoid getting them wet for long periods as the patent polyurethane material might be affected. Since this is a pre - order item, be patient as it takes about 12 days to reach our warehouse. And if we can't get your size from Pleaser, we'll let you know right away.