Pre-wash all materials (without fabric softener) you will be using prior to fusing. Pre-test adhesive on materials prior to fusing. Do not touch iron directly to the adhesive tape. Do not iron directly to your ironing board. Item must be sewn or otherwise attached before washing. Machine wash cold and dry on low heat or no heat (and in accordance to garment/fabric washing directions). Avoid repeated or excessive ironing to the area after fusing. Features: Easy to Use Brand: Therm O Web Manufacturer Part Number: 3347 Manufacturer: Therm O Web, Inc. Assembled Product Weight: 0.045 lb Color: White Assembled Product Dimensions (L x W x H): 0.75 x 3.75 x 5.38 Inches