The vast popularity of National Nonwovens Wool Felt, is attributed to its heirloom quality, all natural wool/rayon fiber blends, rich textures, luxurious colors and outstanding uniformity. National Nonwovens Wool Felt 12″x 18″ sheets are easy to cut, handle and sew. They are great to use for penny rugs, quilts, purses, bags, backpacks, accents on clothing, hats, and much more. 35% wool and 65% rayon