First off, i'll tell you the colours as i wanted to know that part - you get 5 each of:
They are plenty log enough and very strong. No instructions with it, but there's loads of sites that teach you how to do different scoubi knots and styles. I bought these as i like to fiddle with something while i watch tv, and like doing puzzles etc. Im am now absolutely addicted to making these things! All friends now have keyrings and i made a bracelet (very childish, but fun to make).
Can imagine young girls liking these, but as a 28 yr old, ive got to say they can be just as addictive for adults too!
All in all, very good value, delivered quickly, good selection of colours, fab!