Sonic offers a sequential line of toolboxes, designated by the type numbers S7 to the S15. The design of the range is focused on usability, efficiency and style. All toolboxes have a one-piece steel construction, an electrostatic powder coated exterior and 100% extractable drawers with ball bearing drawer slides. All filled toolboxes are equipped/filled with the Sonic Foam System, SFS. From the S9 onwards, all toolboxes are equipped with a drawer-blocking system, preventing it from tipping over.