BCP Double Conductive EMI Shielding Copper Foil Tape- 3/8 Inch X 55 Yds+1/4 Inch X 55 Yds Package included: 1roll 3/8 Inch X 55 Yds + 1roll 1/4 Inch X 55 Yds Size (W x L): 3/8 inch x 55 yds; 1/4 inch x 55 yds. Double conductive adhesive Antistatic, heat insulation, electromagnetic shielding Noted: only one side sticky