Electrical tape holder.
It has capacity for 6 insulation tapes, 3 of them up to 16mm wide and the other 3 up to 20mm. The width of the hole is 74mm.
There are 3 different versions, one without letters, another with letters in English, and a last version in Spanish.
I have printed it without supports, with a layer height of 0.2mm and an infill of 8%. The walls feel sturdy.