The Graphite Modular 5x4 9U Professional Storage Box (3-Pack) is built for workshops that need more capacity without more chaos. You get three matching black pro 5x4 storage boxes that make it easy to separate stock, group project parts, or build repeatable storage zones. Because the system stays Gridfinity-compatible, you can keep layouts consistent across benches, carts, shelves, and drawer setups while still scaling up as your collection grows.