It's blue, it's used and has some markings inside from the litter. (I abandoned the liner after my cat pulled it away from the edge of the box to pee behind.) Getting rid because we now only have one cat and he doesn't use this tray. Will be spotlessly clean, but the markings appear to be limescale from the Catsan - they do come off, but I don't have the time to sit and chip them away.
Free to a regular poster in the Litter Tray who can collect.