From publisher blurb:
Prison Cells is a set of printable dungeon floorplan compatible with any RPG/Dungeon-Crawl game. Use as a standalone gameboard, or combine with any same-scale tileset.
Contains: 3 small battlemaps depicting prison cells, guard rooms, torture chambers and holding rooms. Chains, simple beds, straw, old bones - the perfect place to be kept prisoner.
Uses: Ideal for quick encounters, or as secret rooms in dungeons or castles. Prison Cells can be used as jails, the town gaol, monster prisons, torture chambers and inquisition dungeons.