For all the DIY keebfans in the house here is a super sleek and sturdy 4-Key Aluminum Keypad Shell in Silver, the perfect base to begin your custom keypad project. You provide the PCB in the housing and bolt it into this base. Makes for a prettier build with more protection than just layers of PCB or acrylic. While it's designed for a custom PCB, you could also just snap in 4 keys and 'free wire' them. Comes with one anodized silver aluminum enclosure and a clear acrylic bottom that screws on with two M2 bolts.