This 3D mask is very elastic, strong, and tough, not easy to break. Main materials are non-woven, melt-blown cloth, and cotton gauze. 3D mask outer layer is a non-woven fabric, which is thick and flexible. The middle layer is melt-blown fabric, which filters fine particles efficiently. The innermost layer is cotton gauze, which is water absorption and skin-friendly. Carton contains: - 3 boxes of 50 pcs each. **For further product information, please contact Chat Support**