2" x 50 yds. Silver 3M - 1900 Duct Tape. Ideal for sealing, holding, marking and other light-duty applications. Resists moisture for reliable tape performance in moist or humid environments. Synthetic rubber pressure sensitive adhesive sticks on contact to metal, glass, plastic, concrete, and other surfaces in non-critical applications. Surface readily accepts writing with markers for temporary labeling. Tape tears easily by hand from the roll. Case of 24.