KMH Touches Flosspot Biodegradable Pure Silk Dental Floss Refills provide you with two additional spools of their all-natural dental floss. This is a luxurious silk dental floss, lightly waxed with candelilla for strength and ease of use between tight teeth. It is not flavoured to prevent changing any lab results for purity of its silk, which is at least 97% pure. This product contains no plastic and is therefore safe for the environment.