These accessory pockets may be added to your rig to increase weight capacity or to trim your orientation in the water. The part number includes 2 pockets. Each pocket holds up to 5 lbs. (2.2 kg) of lead weight Pockets are easily slid onto the tank band. The loops are large enough to pass over most tank band buckles. Corner nickel plated brass grommets allow optional mounting to Sure-Lock Attachment Plates using a mounting screw kit. Pockets are made from durable double-sided Armoguard material a super-tough material normally found in public safety diving and military products. This smooth material is ten times more abrasion resistant than standard Cordura. Non-releasable weight pockets have 3/4" (2cm) Airlock buckle closures to secure weights.