Vertical blinds

A vertical blind structure comprising:

• an upper track with an adjustable length having an inner track and an outer track, the inner track and the outer track disposed on a same side and connected to each other;
• the upper track further having a plurality of clamping members, each clamping member comprising an assembly opening having at least two hook-and-loop fastening strips configured for securing a curtain trim,
• at least one track set having a plurality of sliding tracks parallel with each other, each sliding track having a positioning groove and a corresponding limiting groove at two opposite sides and a storing groove at a bottom side;
• an end of each positioning groove comprising a sliding block, the sliding block further having a blocking plate blocking one end of the storing groove, the sliding block slidably disposed in the limiting groove of another adjacent sliding track;
• a limiting block having a elastic buffering piece disposed at a front end of each limiting groove of the sliding track;
• a rotatable block pivoted onto each limiting block;
• a connecting rib disposed on each sliding track, the connecting rib provided with a plurality of apertures and a connecting block, each connecting block having a first slidable fastening portion and a connecting portion with a corresponding length, each connecting block utilizing the connecting portion to secure onto the corresponding connecting rib of the sliding track, such that the first slidable fastening portions align and are close to each other;
• the very first connecting block on the sliding track further having a rope securing portion, the very last sliding track further having a positioning block on the connecting rib engaging with the upper track;
• and
• a plurality of blades each having a strip sliding in the storing groove of the sliding track and limited between the blocking plate and the rotatable block at two ends of the storing groove.