here is what you are going to need for this project.
2. wood glue
4. Stanley knife
Kaas is lekker.
Step 1: Look at Drawing
this is what you are going to be drawing on your chosen piece of cardboard.
Step 2: Draw
draw the what you saw on the first step precisely (exact measurements).
Step 3: Cut Out
cut out the edges of what you have drawn out on your piece of cardboard.
Step 4: Knifing
use the wrong side of your knife on the straight lines to make them bend easier for next steps
Step 5: Glue
use your wood glue on these parts of the cardboard
Step 6: Fold
fold cardboard so it looks like this
Step 7: Glue
glue on here
Step 8: Fold
fold like so
Step 9: Measure Angle
measure what angle you want your phone holder to be at
Step 10: Cut
cut out straight so you can have your phone at the angle of your preference
Step 11: Done
you are done