Perfect Letter Holder - Double Locks

Ran out of envelope? Don't worry! Here is a solution, I show you how to make one with A4 paper in 1 minute. Fast, Easy and beautiful. make one to your friends and they will always remember you.

1) any A4 paper
2) fold a half line in the center
3) fold a triangle for each side
4) and watch my video instruction (sorry my bad English)