The Area 419 Custom Die Storage block holds 10 dies. Dies slip into place and are held simply by a close fit to the die threads. Will hold sizing dies and Redding Competition seating dies as well. Your decapping pin will need to be sticking out less than 0.4a ^2. Features rubber pads on the bottom to keep from sliding around. Also holds 10 bushings, 7 shell holders, and has a tray to store any miscellaneous items like allen wrenches, decapping pins, sizing buttons, etc. These are also available for the Hornady Lock'n'Load system die bushings, just choose the bushing compatible option from the drop down menu. Block is machined by Area 419 from 6061-T6 Aluminum. Dimensions are 7.25a ^2 x 6a ^2 x 1a ^2 thick.