1.Endoscope and scissors all adopt high quality stainless steel material 2.Endoscope adopts the German glass,light fiber and light cone 3.New optical system,wide angle of field,high resolution 4.With direction index,sapphire cover,never abrasion 5.The autoclavable endoscopes can be chosen 6.Lithotriptoscope can be changeable with Storz products 7.It is stable to be hold.When the sawteeth lithotriptoscope mouth is on the 6 position, the handle is on the 4 and 7 position