Packaged in a re-useable clamshell storage container to keep your stabilizer fresh and usable for years. Sulky Stiffy stabilizer is a temporary, crisp, firm medium-weight stabilizer that is used when a heavier tear-away is preferred. It is great for items that need more support like heavier stitch count designs. Use as many layers as needed for support. It tears away easily without stressing the stitches. All Sulky stabilizers are acid and lead free!