1.Adopt high quality stainless steel material

2.Endoscope adopted Germany optic glass,optic fiber,and light cone

3.New optic system,high resolution

4.With direction index,Sapphire lens cover never abrasion

5.Continuous channel can make continue flow and make more clear of field of view

6.Inner sheath can be used separately

7.Doctor can conveniently control the direction though straight endoscope and make operation more easier.

8.Less outer diameter can insert easily and decrease the pain of patient.