Used once after purchase. I usually use the REACH wax-coated floss, but I accidentally bought this one. I tried it, but it didn't fit between my teeth. REACH Unflavored Unwaxed Dental Floss, perfect for oral care. - Brand: REACH - Type: Unflavored Unwaxed Floss - Features: No-Waxed - Package Shape: Case - Languages: Japanese and English Thank you for looking.