Features: One set Hand Use Root Canal K-File/H-File 25mm for assorted sizes(15-40 )is available. Medical grade stainless steel material, good flexibility and fracture resistance. These files fixed plastic washer and handle,which is easy to hold and convenient to use. Packed with 6 files per box, available of assorted sizes i.e. 015, 020, 025, 030, 035, 040 and 6 boxes a pack. Diamond-shape cross section With high quality cutting efficiency. A great tool for dentists. Specification: Type: Endodontic Root Canal Material: Stainless Steel Assorted Size: 15-40 Length: 25mm Model: K-File/H-File(Optional) Package Size: 7 * 4.8 * 3.2cm / 2.8 * 1.9 * 1.3in Package Weight: 60g / 2.1oz Package List: 6 Boxes * Endodontic Root Canal (K-File/H-File)