- Strength category extra spring hard · 2300—2500 N/mm2. - Color-coded packaging red. - ø0.40 mm / 16 - Material stainless steel - E-Modul170 kN/mm² - Maxillary/Mandibular: Maxillary+ Mandibular - Rm2400 N/mm² - Length each 380 mm **For further product information, please contact Chat Support**