3M 3900-48X54.8-BLU ~ Multi-Purpose Duct Tape 3900 Blue (1.89 Inch x 60 Yards)3M Multi Purpose Duct Tape, 3900, blue, 1. 89 in x 60 yd (48 mm x 55 m), bulk 3M Multi Purpose Duct Tape 3900 is an industrial strength tape that gives you a variety of colours for identification, contrast, decoration, bundling, sealing, holding, protecting and other tough jobs It is also used to colour code bundles of pipes and conduit, call attention to temporary repairs, secure carpet and wiring to floors and provide attractive seals on coloured