X-floss is soft bulky floss with a firm nylon threader attached. Stretchy floss has the ability to ‘grab’ onto plaque. Normally the floss is thick, but it stretches flat to get through small gaps. Firm nylon threader is easy to insert, resists buckling, and resists moisture. Ideal for implants, bridges, wide perio spaces plus braces. Unique Patented design.