Petzl trigrest for quark (2010)

The Trigrest hand rest is adjustable in height, without tools, on the shaft of the handle.  It has two support positions:  a brace for hand switching in the high position, and a brace for the index in the low position.  The latter increases grip strength for leashless climbing and improves planting precision.  The Trigrest may also be used in a fixed position, without the index support.