- Material Adhesive Back on both sides the like the many uses electronic components in the following colors and 99.98 percent copper Size:/20 m x 5 mm copper shield eliminates electrical noise yau is the on the printed circuit board copper trace repair on the EMI shield your guitar pickguard and hollow back crafts art slugs and katatumuribaria control pots and planters as protect plants by taping around it. The package includes the roll of copper foil tape