Excellent sealing, smooth insertion Unique Four-valve plus ultra-thin sealing membrane design, to ensure tightness and reduce the frictional resistance of instruments passing through. Detachable Housing Simply press the knob to eject the seal assembly. Quick and easy to operate with one hand. Better visualization Visible ligh-colored puncture rod for better light transmission, convenient to see the entire process of puncturing abdominal wall. Avoiding damage to the abdominal tissue. Ordering information Code • Sinolinks Medical Innovation, Inc. • Add.: No.10 Ziwei Road, Zhonglou Zone, Changzhou, Jiangsu, China, 213023