The Protective Foam Insert Set fits inside all Festool Systainers, sizes 1 thru 5, to help secure and protect your most valuable items. Ideal for delicate or sensitive tools, lasers, measuring equipment, cameras or electronics. One foam insert attaches to the lid and one to the bottom. The third insert is a single diced foam insert that can be customized to any desired shape by easily removing the unwanted foam cubes, or sections. Includes dimpled insert for lid, 1 base insert and 1 diced insert for the main body. Festool Systainers make organization easy. The Festool Systainer System offers a rugged, flexible, and convenient means of storing, carrying, and combining tools and accessories. The Systainer System makes it possible to configure highly mobile, job-specific kits, helping you to work more efficiently and stay better organized.