These are real metal foil with adhesive backing tape are for card making, scrapbooking, embossing, edging, striping, art & craft. Strong adhesive for decorating greeting cards, scrapbooks, arts and crafts, hinge boxes, glass and metal. Use on stain glass projects. To emboss, place on soft surface. Draw design with fine point stylus. Flip over, retrace, remove backing and attach to card. Permit lead soldering in stain glass craft. Available in brass, copper and aluminium.