This is a Russian copy of the Petzl Shunt. The lever is milled instead of forged aluminum, and the machining marks are evident. The side plates are steel, and mine have rusted in storage, corroding the bolts as well. You can see the in the photos. Still, this shunt appears to be as usable as the original.
T2LeverCam101.html/090213
©2009, Gary D. Storrick