The Roll End Tray (RET) 4-Sided is a very effective, robust, and adaptable tray form. Craft beer, cider, soda, and other products in cans and bottles can all be shipped with ease using this method. RETs have two layers of corrugated on the ends for a neat, appealing appearance. They are the some of most dependable trays on the market, even though they are constructed without glue or staples. These boxes employ clip cutout locks and roll end friction for the simplest installation possible.