Eightwood Aluminum Project Enclosure Box Electronic Case for PCB Board DIY- 4.32" x 3.74" x 2.17"(LWH) Split Top with Pre-assembled Extrusion Box Heavy gauge extruded aluminum construction Professional sandblast/matte anodized finish Built-in grooves for holding circuit board Excellent electromagnetic shielding performance Color:Dark Gray | Outer dimension:4.32" x 3.74" x 2.17" (LWH) | interior dimension: 4.32" x 3.43" x 1.93" (LWH)