This is a Shelly cabinet for use with roller blinds and Shelly 2.5. The cabinet contains Shelly unit and two push buttons for resp. opening and closing the roller blinds manually.
It comes in two different models, depending on your cabling - either with cables on one side or from both sides.
Besides the Shelly 2.5 unit and the case, you will need PLA, two M3 bolts, two M3 brass insert nuts, one black and one white push button (230V~ 11.5mm diameter) and some AWG 20 wire.