We are committed to providing more reliable product and better customer service to our customers,if you aren't 100% satisfaction with our products,please contact our customer service team and we will be glad to assist you. Dental professionals recommend flossing regularly,flosser refill heads remove small food particles that get stuck between the teeth and around gums, keep oral health. Helps protect your teeth and gums by effectively removing plaque from hard to reach places,keep your teeth clean. The extra strength floss ,does not stretch, shred or break. The pack includes 180 disposable snap-on flosser refill heads for use with RAZOKO clean dental flossers, an oral care tool that makes flossing as easy as brushing.