A banana box is a type of corrugated box for transportation of bananas. It often consists of a separate lower part and a telescoping lid. Carrying handles and vent holes allow banana respiration and permit access to processing gasses such as ethylene oxide for ripening. The hole in the bottom is usually covered with a thin sheet of paperboard or corrugated board so that the bananas do not fall out, and a layer of plastic is usually placed between the bananas and the box.