Drink Tray Elevator Block

The 10 pack of soft drinks and soda is supposed to dispense from the front and the next can rolls to the front ready. This doesn't work on a flat surface, so made these blocks to raise the rear of the box to allow the dispensing to work better. This is scaled for metric 375ml cans, but make work for other sizes. The blocks are 30mm, (an inch tall). I found others do not use the original box, but i did not want to unload them all.
Print both sides as they are symmetrical.