This wool is unprocessed. That means it is unwashed and to get the best results, you need to process it. A recipe with complete instructions will be provided with each bundle. All you need is dish soap and vinegar. Six (6) pieces of different wools, each a fat 1/4 yard, make up the 1-1/2 yard bundle. The wools included vary based on availability. Your cut strips will be 36″ long speeding up the tedious process of hooking backgrounds.