Cây cho chim ăn dài hai bên hở

This is an easily 3D printable long bird feeder with open sides and zip tie mounting holes on the bottom.

It is the long open version of my cozy bird feeder:
https://www.printables.com/model/683630-cozy-looking-bird-feeder

I noticed that the birds started to queue up at the cozy bird feeder, as it has only one side open. They wait surprisingly politely for their turn, but I thought I could do something more efficient, so I made this version. 

It has a 120 mm x 199 mm base and is 160 mm tall. 

I printed it out of white ASA with a 0.4 mm nozzle and 4 walls to have a strong structure.