- Strength category spring hard · 1800—2000 N/mm2. - ø1.00 mm / 39 - Maxillary/Mandibular: Maxillary + Mandibular. - E-Modul170 kN/mm² - Material stainless steel - Rm 1900 N/mm² - Length 80 m. **For further product information, please contact Chat Support**