This product adopts the of winding bobbin . Built in 50 of wire, -wax, mint, flat wire, using sterile operation, ultraviolet sterilization process. The production of dental floss is clean, and flexible. No hair, no wire, no wax off and can effectively prevent and treat toothache. Health beautiful teeth, lasting brilliant smile. Cleans where your toothbrush can't reach Brushing along can't to all the hard-to-reach where plaque builds up. dental floss can. Caution: accompany the floss replacement with tooth fairy pocket dental flosser. Avoid extreme heat. For external use only, not to be swallowed. Keep out of reach of children. With 50m-extra- floss capacity, could be used for more than 300 to the usage amount of 3 months Colour:White Material:polyester Size:Single roll: 50m Package Contents: 10 x Dental Flosseres Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.