3M - White Double-Sided Polyethylene Film Tape: 2″ Wide, 36 yd Long, 9 mil Thick, Rubber Adhesive - 65364630 - MSC Industrial Supply
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Amazon.com: Command Picture Hanging Strips, Value Pack, Removable, (8) Large 0.63 X 3.63 Pairs, (4) Medium 0.5 X 2.75 Pairs, White : Industrial & Scientific