- Strength category spring hard · 1800—2000 N/mm2 - ø 0.90 mm / 36 - Maxillary/Mandibular: Maxillary + Mandibular. - E-Modul170 kN/mm². - Material stainless steel. - Rm 1900 N/mm². - Length 100 m. **For further product information, please contact Chat Support**