3-Pack Rockler Foam Organizer Sheets, 2' x 4' x 2-1/4'' thick - - Amazon.com
Amazon.com: CASEMATIX 3 Pack Gun Case Foam Customizable Insert with Three Pluck Foam Sheets for Gun Cases, Foam Padding, Packing Foam, Tool Foam, Kaizen Foam - 20.0" x 13.75" x 1.75" Each :