Foam tray with slots in c-slot design. The slots have a conical footprint. The dimensions of the foam mat with 45 slots is the same as that of the foam mat with 36 slots (345 mm x 275 mm). We have the slots arranged in a space-saving and optimizing the distances between the slots. On the mat five rows are pre-punched with a nine slots. The length of the longest side of the slot varies in three stages: 37, 39 and 49 mm.