Unnecessary. The tray is quite shallow and the removable tray doesn't submerge deep enough, and the little comb is useless.

From just looking at it, it looks cheap. However, it is a great tool to have when you are working with decals. It saves you from trying to find a clean container to use when it comes to decals. I used to have search all over to get the right container size. It's worth the price buying and having in your tool kit. I highly recommend this tool, from the beginner to the expert model builder.

This tray works great. With the design of the tray I no longer need to put the decals on an paper towel to soak up excess water. The tray slides up and lets the water drain back in to the holding tank.