Fiber post system provides high strength, low modulus, and untouchable resistance to stress. Fiber posts can not break down due to corrosion. For artistic requirements and need post-core restoring. - Diameter 1: 1.0 mm. - Diameter 2: 0.8 mm. - Length: 18 mm. - Color: Black. Pack contains: - 6 Posts + 1 Drill. **For further product information, please contact Chat Support**