This is a tension square using Emu Coolspun cotton yarn. It knits up in a loose, bobbly fashion and is extremely good fun to use. I bought this one on the internet because I liked the colour.
I have already made a couple of tops with it but it is more suitable for summer wear because it is so cool.
It also washes well and can be put in the tumble drier.
I don't know if it is made any more but I like it.