This needle punched 100% wool batting is carded and then finely needled into a luxurious 100% wool batting, reinforced with a fine scrim which prevents stretching while quilting. It provides ultimate insulation and warmth while lightweight and breathable for ease of use and exceptional quilting. Weight: 4.5 oz./square yard Machine or hand quilt up to 10in apart. Hand washing is recommended for quilts. However, finished quilts may be dry-cleaned or machine-washed on the gentle cycle using cold water. Avoid agitation. Use a gentle detergent recommended for quilts and wool. Lay flat to air dry or machine dry on a cool air setting.