Under the proposal of Ernesto Gismondi, co-founder of Artemide, Sapper designed a lamp that incorporated new technologies (the halogen lamp) with a flexible structure designed meticulous attention. The table lamp includes a counterweight system that holds in balance the arm holding the light, adjustable with a simple touch of a finger. The arm rotates at 360 degrees around the substantial base, and the small reflector can be oriented in any direction.
It is produced in finished metal with a light coating in reinforced nylon and fiberglass; the lamp has invisible joints that do not include screws but are fixed thanks to a pressure mechanism. This way if the lamp falls, the attacks will not break up; instead, they may fall apart but will be easily assembled back together.
Since 1972 until today, it is produced by Artemide.