Medical grade hydrogel HALO Seal sticks in wet, bloody, sandy, or harsh environments. Features scrim to prevent gel migration in high heat. Temperature range -30 to 140 degrees F, covers large wound areas with oval shape for better adherence. Covers a greater surface area, and aids in coverage of larger, unpredictable wound patterns. Oval shape allows for greater adherence around the contours of the body. Large pull tab allows for effective placement and wound burping.