pH Strip 0.5-5.5, 16' Roll with Dispenser

Wide, 16 feet roll comes with one roll, color chart, and has unique locking mechanism making paper easier to tear off and use. Vivid, clear, easy to read color chart increments at increments of 0.5. Paper roll is contained in a single plastic dispenser with an opening and closing mechanism, enabling an easy tear of the paper and longer storage by protecting the roll from the elements.