Detailed Product Description Specification of Videoscope, endoscope, Colono VideoscopeField of view 120°Depth of View field 5mm-100mmRange of tip bending Up180° Down150 °Left150° Right150° Outer Diameter of Distal End 14.3mmOuter diameter of Insertion tube13.7mmInner diameter of Biopsy channel 4.2mmWorking length1300/1500/1680mmwaterproof