Eightwood Aluminum Project Box Enclosure Electronic PCB Instrument Case DIY - 4.33" x 1.57" x 0.98" (LWH) Heavy gauge extruded aluminum construction Professional sandblast/matte anodized finish Built-in grooves for holding circuit board Excellent electromagnetic shielding performance Color:Blue | Outer dimension:4.33" x1.57" x 0.98" (LWH) | Interior dimension: 4.33" x 1.38" x 0.78" (LWH)