Easy friendship bracelet DIY tutorial - square knot macrame

In this video I use 1mm waxed cotton cord in two different colors. Hemp cord would also work. A thicker cord will give a thicker bracelet.
For this project you will need:
2 x 120cm (= 47 inch) lengths. I use two different colors.
2 x 50cm (= 20 inch) lengths, again I use two different colors.
1 x 46 cm (18 inch) length to make the sliding closure
Scissors
Glue or clear nail polish.
A piece of tape or a bulldog clip.
A clipboard or stiff cardboard to secure the cords to.
A ruler or measuring tape.