The Dynarex Waterproof Adhesive Tape protects wounds and dressings from water penetration, while also remaining strong to hold dressings in place. This tape is ideal and common for first aid kits, home use, and school. This tape is safely latex-free, as its not made with rubber latex, and comes in three size choices: 0.5" x 2.5 yd, 1" x 2.5 yd, and 1" x 10 yd.