One vertical unit fully looped with yarn. There are 17 lines at every section of frame. Search “논현오피▽『!OPOPGIRL17���COM』『오피오피걸』「논현OP」∂「논현휴게텔∂논현오피추천∂논현건마」∂「논현키스방위치∂논현안마」” from The Making of Screenplay: Part 4

Search “논현오피▽『!OPOPGIRL17���COM』『오피오피걸』「논현OP」∂「논현휴게텔∂논현오피추천∂논현건마」∂「논현키스방위치∂논현안마」”

One vertical unit fully looped with yarn. There are 17 lines at every section of frame.