The Sea to Summit 2-Pin Side-Release Field Repair Buckle replaces nonadjustable buckles like those found on dry bags or V-pull hipbelts. You can do the repair in the field using only a screwdriver.
Features
Stainless-steel pins hold the buckle together permanently; a Phillips head screwdriver securely attaches the buckle to the webbing on your pack's strap
Since the buckle is permanent, there's no need to have your new buckle sewn on when you're back home