3M Heavy Duty Duct Tape 3939 Silver, 48 mm x 54.8 m 9.0 mil, Conveniently Packaged (2 rolls) 2 rolls of Industrial-grade duct tape for splicing, masking, patching, sealing, and seaming Silver polyethylene surface resists wear, abrasion, and water High tensile strength for a secure hold under stress Good choice for hanging polyethylene drapes for containment activities Thick rubber adhesive bonds to most rough and smooth surfaces for a tight seal