The Magpul DAKA Block Expansion Kit provides additional organizational blocks to enhance your DAKA GRID Organizer system offering increased versatility and customization options for your case setup.Magpul DAKA Block Expansion Kit in Black6 Triple Blocks for larger item organization6 Double Blocks for medium item storageFull compatibility with Magpul DAKA GRID Organizer lineModel MAG1355-BLKPerfect for expanding existing DAKA GRID setups or providing extra support and organization options for securing additional gear in your cases and containers.