The Boston AC-292 is an audio signal cable that connects an XLR female connector to a 6.3mm (1/4 inch) stereo jack plug, letting you link gear that uses these two different connector types on a line-level signal path.
It's built for straightforward point-to-point wiring: from a mixer or DI box output to a device with a stereo jack input, or the other way round. Boston makes this cable in two lengths, 3 metres and 6 metres, so you can match the cable to the distance between your gear, whether that's a short studio patch or a longer stage run.
Keep cable runs as short as practical, and coil the cable loosely when storing it to avoid stressing the connectors. Boston is a long-established manufacturer of instrument and pro-audio accessories; Vybe Drums stocks the AC-292 in both lengths and ships across the EU.