Detailed Specifications: you will get 3 rolls of dental sanding strips in various 3 types, including pre polishing, polishing strips and shaping, and obviously designed in 3 colors, purple for coarse, green for medium and yellow for fine, you can choose each according to your needs Safe and Flexible: made of resin, abrasive dental floss is not easy to spoil your teeth, anti tear and maintains flexibility, which can offer you a comfortable using experience Easy to Operate: owing to elastic and thin material, dental strips abrasive are easy access to teeth for manipulation, assisting you in tooth notch fillers where difficult to reach, thus keeping teeth healthy Main Functions: dental floss file is mainly designed for tooth abrasives and are ideal for removing tiny overhangs for oral health and beauty, letting you chat with others with more confidence Cuttable Size: teeth filer tool measures about 4 mm/ 0.16 inches wide and 6 meters/ 20 ft long, you can cut to the proper size you needed, saving your time and labor and fitting for actual needs