Designed to fit Packout 2-Drawer, 3-Drawer, 4- Drawer, and Multi-Depth 3-Drawer Tool Boxes (48-22-8442, 48-22-8443, 48-22-8444, and 48-22-8447) Step 3, peel out the layers Customize Your Insert Layered Foam for easy customization Durable construction provides increased protection for Tools Securely Store and Protect Your Tools Three Step Process to Create a Custom Layout Step 1, trace your product Step 2, cut the outline with a knife at desired depth