1.Materials: stainless steel . 2.6 pcs/box . Specifications1.Dentsply Maillefer K File, H File2. Dental Files Length : 21mm and 25mm 3. Six pieces K-Files packed in a box4. Files Models:#08,#10,#15,#20,#25,#30,#35,#40,#15-40, Dental Densply K file/ dental supplies