Tray of the dual structure of the combined two sheets in the zipper. 
The fabric of the upper surface subjected to a non-slip and water-repellent so that we can put wet things and the dirty ones. With the bag-shaped space to open the zipper, also divided into you nails at the same time what you do not want to pollute. For Fabric made, it is quiet even for such as vibration and steps during running.