1.Easy to use：
Only three steps to setup: place the retractor ring at the right position-pull，the tissue outwards by retractor’s hooks- fix retractors on the ring.
2.Flexibility in retraction and exposure：
According to different surgery demands to select retractors and adjust their position to optimize the exposure of surgical field.
3.Light weight with high strength：
The retractor ring is made of innovative polymer materials with light weight,high strength and effectively reduces the pressure on incision site.