The file 'Case For WiFi Packet Monitor (Preflashed D-duino-B) 3D Printer Model' is (stl) file type, size is 219.7KB.
This is the case for:https://www.tindie.com/products/lspoplove/wifi-packet-monitor-preflashed-d-duino-b/
You can print this and assemble with screws or hot glue.