from 200 to 500mm in length360° angle variation using a flexible joint30-millimeter mirrorBest for use in the home, in electronics, and in workshopsRound inspection mirror by Silverline. 360° vision provided via a telescoping mirror set on a swiveling ball joint. tube made of brass and chrome. Ideal for use in the home, in electronics, and in workshops. reaches from 8″ to 20″ (200 – 500mm). 1-1/4″ (30mm) in diameter mirror.