This is the Apeks Removable Trim Pocket 5lb PAIR Features: Increase Weight Capacity or Trim Your Orientation In-the-Water Includes 2 Pockets Each Pocket Holds Up to 5 lbs. (2.2 kg) of Lead Weight Pockets Easily Slid onto Tank Band Loops Large Enough to Pass Over Most Tank Band Buckles Corner Nickel Plated Brass Grommets Grommets: Allow Optional Mounting to Sure-Lock Attachment Plates Note: Sure-Lock Attachment: Requires Mounting Screw Kit Construction: Durable Double-Sided Armoguard Material Armoguard: Super-Tough Material Normally Found in Public Safety & Military Dive Products Smooth Material 10 X More Abrasion Resistant than Standard Cordura Non-Releasable Weight Pockets Pockets Have 3/4 (2 cm) Airlock Buckle Closures to Secure Weights 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."