SURESEAL Self-Activating Pressures Bandages are used by dialysis centers worldwide as a post dialysis wound dressing. The cellulose pad expands to several times its original size on contact with blood. It can reduce pressure time over the traditional tape and gauze plus seals and isolates the site securely on all sides. They are versatile and may be used on most venous and arterial dialysis and blood sampling sites. Sure Seal Bandages contains NO LATEX and are suited for people with sensitive skin or latex allergies. Each box contains 100 bandages.