Root Canal NITI K File Applications Hand use / Motor use Material Niti/Stainless steel Length 21mm/25mm/28mm/31mm Certificate CE/ISO/FDA/FSC Packing 6 pieces / box (Assorted or single size) Storage Put the instruments in a sterile package and store in a dry and clean environment. Feature: The NiTi alloy file tends to return to its original sharpness due to its memory effect and provides great flexibility and fracture resistance. Non-cutting tip guides the instruments safely through the canal. Square cross section With silicone stoppers Blister or box of 6 pieces