Yosoo 2pcs Black Extruded Aluminum Electronic Box Enclosure Project Case PCB DIY Box-1.97"x0.98"x0.98" (LxWxH) Split aluminum shell, data board shell, MINI mobile power shell Built-in grooves for holding circuit board Light Weight, Durable, Non-corrosive Surface sandblasting, brushed processing Good for electronic projects, power supply units