Wow! Amazing DIY safe box 4 digit password from cardboard. It's awesome idea. I hope everyone like this idea. Thank you for watching!! Please subscribe to get more interesting videos: https://www.youtube.com/channel/UCNZMEiM-ZMYmEk2CG3mr1_Q?sub_confirmation=1

You Need:
- Cardboard
- Bamboo chopstick

Cardboard Measurement:
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(cm = centimeter)
1cm x 13cm = 4 pieces
9cm x 9cm = 1 piece
9cm x 9,5cm = 2 pieces
9,5cm x 10cm = 1 piece
11cm x 10cm = 2 pieces
11cm x 11cm = 4 pieces