Tool Storage Foam Inserts, Color Black, Compatible Modular System Packout, Compatible with Grainger Part Number 488A56, 488A57, 499M40, Compatible with Manufacturer Model No. 48-22-8424, 48-22-8425, 48-22-8450, Compatible with Product Type Modular Storage System, Tool Boxes and Tool Cases, Customizable Yes, Features Durable Construction Provides Increased Protection for Tools, For Use With All Packout(TM) Tool Boxes and Tool Cases, Packout(TM) Modular Storage System, Includes (1) Foam Insert