- Flexy NiTi Copper Archwires are the fruit of the great advances in biomaterial technology combined with first-world engineering. Copper makes up 6% of their composition. Benefits of Copper: - Fosters an accurate form memory and greater permanent-deformation resistance compared to conventional alloys; - Leverages the thermal properties of the archwire, demonstrating its elasticity and providing higher development and consistency to tooth movement. **For further product information, please contact chat support**