Our in house dyed wool fabric is 100 % woven wool. Great for wool appliqué or rug hooking. Because our wool is hand dyed you will notice a mottled texture to each piece. Some pieces are dyed on natural wool making a slightly tighter weave. Some pieces are dyed on oatmeal making it look more rustic spotted and a slightly open weave. Because the wool shrinks differently in the dying process these pieces range in shape. Some may be squares some may be slightly larger rectangles. No dye bath is ever the same so if your not sure if one will be enough for your project we recommend you purchase 2 to be safe.