This case is for the standard CW Decoder that can be purchased online. This is a remix of the case created by johnnyv477. The bottom of the case will accept brass inserts. It uses M3x30mm screws (screws might need to be shortened by 1-2mm). I added my friends call sign and sign call in morse code. I printed case in yellow and call sign in black, he is a Boston Bruins fan. If you don't want call sign it can be printed facedown and not need supports.