Complex sentence: The Ibanez SZ series is a derivative model, basically the hardtail version of the S series, with a thicker and heavier body and a shorter 25.1 set-in neck.
Split into simpler sentences: The Ibanez SZ series is a derivative model of the S series. Guitars of this series feature a thicker and heavier body than the normal S series, hardtail bridges and a shorter 25.1 set-in neck.