The Black Diamond Rocklock Screwgate Carabiner is a locking carabiner of the largest size (from BD, that is). Black Diamond is all about offering plenty of options and with this you'll be ready to climb in moments, just unscrew, open, clip in, close screw and get at it. Whether you're belaying, rappelling or anchor building, it'll get the job done with plenty of space within. Trust worthy and simple to use.
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