Half covered and Half uncovered design
(1) Covered part : Bridge the left hepatic duct with the stomach & Prevent leakage
Flared end placed out of the stomach wall prevents migration
(2)Uncovered part : Avoid side branch blocking & Prevent migration
Radiopaque marker : 3(three) at both ends & 2(two) in the middle
https://www.youtube.com/watch?v=1iL5Psfq3JA&feature=youtu.be