I'm selling unused portions because they didn't suit me. Annon Pharmaceutical 【Available at dentists!】 For orthodontics, bridges, and flossing. Floss threaders. There are 48 pieces! The threader is used to insert floss through the gaps in orthodontic appliances, making it easier to floss. There's a lot! Similar to GUM Sunstar Gum Through Floss Threaders.