Hydrocolloid Roll for Wound Care – Cut-to-Size, Hydrocolloid Patch Bandages with Self-Adhesive, Ultra Absorbent & Waterproof, First Aid Kit Essential (11.8mil/ 0.3mm Thickness, 2in 8ft). Hydrocolloid Roll for Wound Care – Cut-to-Size, Hydrocolloid Patch Bandages with Self-Adhesive, Ultra Absorbent & Waterproof, First Aid Kit Essential.