One of the most popular full-sized descenders used by professionals throughout the rescue, fire service, and police/tactical markets. Machined from 1/2 inch thick, solid aluminum, heat-treated bar then finished with a very tough, hard andonized finish in either gray or black. The carabiner hole functions effectively as a sticht plate for 1/2 inch rope, although this configuration does not provide sufficient friction when used with smaller diameter rope.