You will need to wash and dry any bolt wool. Unless you order it washed, in that case you will receive it all washed and fulled ready to use. You can also order it washed and cut, ready to hook! Most of our wools are best suited for #6 and up. If you would like another size, from #4-#12 just let us know and we are happy to do that instead for you. Just order either the #6 or the #8 and send us an message requesting a different size. Just remember most wools are best in #6 and up.