Good for difficult securement applications eg. Dressings on head 3Mâ„¢ Cobanâ„¢ Self-Adherent Wrap is a self-adherent elastic wrap that functions like a tape, but sticks only to itself. Available in sterile and nonsterile styles, and in a variety of widths and colours to meet your application needs. Sticks to itself without need for adhesive, pins or clips. Wrap stays in place - no need for frequent readjustment. Lightweight, porous and comfortable. Helps protect primary dressings.