The large pouch provides a lot of carry space when you need it. The inside is one large open space with two tool holder provided on the back wall where you can hold knives, chisels, pliers etc. This pouch can be attached directly to the rig belt or even attached to another large pouch for ultimate carry capacity.
The small and medium pouches can be attached to the outer clip points to add versatility. When the job is completed the small pouches can be removed to empty the remaining fasteners, no more dumping out the whole rig.
These pouches also attach to the tool holder and work bag.