Removable Front & Back Instrument Cases consist of a U-shaped top and bottom piece that capture and overlap the front and back panel. Because top and bottom are held together by internal side panels this 6-part design is extremely strong and does not rely on any solvent welds. Since all panels are removable this type of plastic enclosure is ideal for diagnostic devices that require frequent service. It compares favorably with cases made from extruded aluminum offering better access and more customization options. ABS and PC-ABS are the preferred materials.