How far does the shaft extend?
It telescopes from 170 to 670 mm; the oval cross-section prevents twisting and loosening.
How does it differ from the SL-114?
The SL-200 is the complete set, featuring 3 interchangeable mirrors, an LED, a neodymium magnet, and a case; the SL-114 is the basic version, with a single mirror and no LED.
Where is it manufactured?
In Japan and it is recommended by AREL.