Bridgeaid floss threaders make flossing under fixed bridges easier. All threaders have precision-molded, smooth edges to be gentle on gums and are extra thin for tight spaces. Bridgedaid Dental Floss Threader is endorsed by oral hygienists worldwide. You will receive (500) Bridgeaid Floss Threaders Floss Aid BridgeAid Floss Threader 50 Envelopes of 10 threaders each Multipurpose Threader Floss for cleaning, brushing and flossing between teeth, under bridges and around braces. Floss for braces that promotes healthy gums and helps to maintain oral health Gently guides floss or tape under bridges and braces. Note: Floss is not included with threaders. Image is for illustration purpose only.