Double-opening zipper

A double-end slide fastener (1) according to the present invention is provided with: a pair of element rows (6) fixed along opposing side edge sections of a pair of tapes (5); a plunger (7) and a seat bar (8) which are separately fixed to the rear ends of the pair of belts; and a forward slider (3) on the front side and a reverse slider (4) on the rear side which can move back and forth along the opposite side edge parts of the pair of belts. The element row on the seat rod side comprises a continuous element part (61) in which a plurality of elements (6a) are continuous, and independent elements (21) on the seat rod side. The individual elements are housed inside the forward slider in a state in which the plunger can be inserted into and removed from the forward slider and the reverse slider, and are disposed between the continuous element section on the seat bar side and the seat bar so as to be spaced apart from the continuous element section on the seat bar side and the seat bar in the front-rear directio