1.25 Mil Stained Glass Copper Foil Tape with Conductive Adhesive (7/32inch X 36yards) ELECTRICAL REPAIRS MADE EASY WITH DOUBLE CONDUCTIVE TAPE - Conductive adhesive means both sides of this tape will carry current so whether it's soldering, grounding or minor repairs, our tape will do the job, and do it well. High tack and heat resistant adhesive back securely holds foil in place Use when working with opalescent glass, and transparent glass when you will be using copper patina Standard 7/32" foil width for most stained glass projects This is what you can find best price on Amazon,because every cent you paid should get most gain.In the meantime,please enjoy our two years quality guarantee and free return.