diameter from 2.7mm to 10mm 45mm to 320mm rigid endoscopic very cheap price best performance rigid endoscopicdiameter from 2.7mm-10mm ,working length from 45m-320mm for ENT,ARTHOPEDICS,UROLOGY and GENERAL surgery ,0 degree ,12 degree,30 degree,45 degree,70 degree and 90 degree all available for choose ;contact us freely if you have any demand .OEW is also available . ENDOSCOPIC