Specification Brand : No/branded BulletPoint1 : Length:25MM BulletPoint2 : Material: High-quality NITI BulletPoint3 : Used in: Engine use BulletPoint4 : Very sharp, soft, cutting efficiently, high flexible, but please don't use more than 8 canal. BulletPoint5 : Package: 6 pcs/pack Color : Blue ExternallyAssignedProductIdentifier1 : 0729388779000 ExternallyAssignedProductIdentifier2 : 729388779000 FdaDeviceClassification : i FdaIndicationOfUse : otc FdaInstructionsForUseType : consumer FdaLabelType : consumer IncludedComponents : Rotary Files ItemName : Dental Endo Rotary File Endodontic X-TAPER Blue Max NITI Engine File Root Canal Therapy Tools 25MM EASYINSMILE (1) ItemPackageDimensions_Height : 27.6 centimeters ItemPackageDimensions_Length : 6.1 centimeters ItemPackageDimensions_Width : 23.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : professional-dental-endodontic-rotary-files Manufacturer : No/branded Material : Stainless Steel ModelNumber : 8204115 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 4301005 ProductDescription : GUIDELINES FOR USE: 1. X-TAPER BLUE files are compatible with all major rotary motors. 2. Explore the canal by using #10 stainless steel hand files 3. Use SX to open canal, set up a straight path 4. Irrigate, then expand a glide path by PATH FILE #12.5, or #15, or#20. 5. Use S1 to prepare to 3mm or 4mm SHORTER than the working length.(even shorter) 6. Use S2 to prepare to work length 7. According to the preparation status, to choose use F1- - F3 to prepare to work length