20m Seam Sealing Tape Iron on Hot Melt Waterproof PU Coated Fabrics 20 meter length of hot melt seam sealing tape. Dimension: 20 meters x 20 mm width.thickness: 0.08 mm For sealing sewn seams: Repairs to polyurethane (PU) coated breathable waterproof fabric: leisure waterproofs, sportswear, uniforms, protective clothing, tents, covers, awnings etc. This fabric repair tape is sealed with a waterproof coating and will not come off when washed. Apply with household iron (medium / medium heat setting). Package includes: 1 piece seam sealing tape Notice: Please allow a slight difference of 0-1 cm due to manual measurement. The color may be slightly different because the monitor is different. Thank you for your understanding and attention. Wish you a pleasant shopping experience!