Origami Bag.

Part 1: https://www.youtube.com/watch?v=NOAmyuAwXJA

Paper size: 3×13 cm

Other “Bag” Tutorial: https://www.youtube.com/watch?v=WbTqZNE6XAw

Instagram: http://instagram.com/paper_art_013

Carefree by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1400037
Artist: http://incompetech.com/

source