The washcloths crochet pattern is described with many details, and with a lot of picture tutorials.

There is also a detailed description on how to crochet technique, and there are picture tutorials that show you how to crochet the technique.

This pattern is in US Therms

The finish measure:

Width: 22 centimeter
length: 36 centimeter

You will need this, to crochet this pattern:

2 ball of 100% cotton yarn with 50 grams each, if you want to crochet with one color then you need 3 ball 100 % cotton yarn with 50 grams each.
1 ball of, 8 other colors in 100% cotton yarn.

You need to crochet with crochethook number 3:00 millimeter
1 needle, you need this to sew all your yarnends in at the end.

Crochet technique in this pattern:
Chain stitch
A chain with chain stitches of 73, you start to crochet these.
A chain with chain stitches of 2, these are you turning stitches after you crochet every round.
Single crochet
Crochet 2 Single crochet in one stitch.