This feeder is made from 4 inch PVC pipe and a Y. A cut up 2 liter pop bottle fits nicely as shown for plugging the bottom and covering the top fill. Of course you will need to glue it all together with the exception of the lid cover made from the bottom of the 2 liter bottle. If you plan to use it outdoors, you will need to add some small drain holes at the bottom. After assembly, you can paint it what ever color you like too. This can easily be used for pets, wild life, and even small farm animals.