Brian from United States, PA Public Profile

The BD Rocklock handles most "big biner" tasks well.  Being round it makes a very smooth belay carabiner.  It is wide enough for several widths of rope like when rappelling, or using munters or clove hitches.  If used as an anchor or redirect the shape shifts load toward the spine for strength, but the rounded profile makes for smooth rope action.  The gently curved corners allow it to be used with wider items like a pulley that would bind in the corner of a standard offset D.

As a jack of all trades large carbiner, it is the one I reach for when I need something a little bigger, rounder, or less angular than a standard offset D.  When outfitting my family, everybody needed one of these plus a cheap tube device for belays and rappells. Then we needed a few more for anchors, tie in points, and other miscellaneous large biner functions.  Now it's the first large biner I look for when I'm shopping for this style.  Conveniently it is also widely available and an easy order add on almost everywhere I shop.

I can't see buying or carrying around numerous different big carabiners when this one does everything I need of a large biner.