copper foil: 1.used for stained glass 2. 1mil,1.25mil and 1.5mil thickness 3. the maximum width is 12cm 4. 36 yard per roll copper foil :it is made in fine copper and good glueavailable in black,plain and silver color.most popular specification is 1mil thickness, 5/29"width,1/4"width ,7/32"width,1/4"width.Other size can be available.used for Tiffany lamp, stained glass artworks. copper foil