Pair of big steel things (Pendeen TR19)

I had these made up from some scrap C-channel to support a car chassis over an inspection pit while I was working on it. No longer needed and it seems a shame to just chuck them in the scrap so thought I'd offer them here first. They're made from 3 pieces of thick 5mm steel C-channel welded together with an overall size of 105cm x 30cm x 5cm, and there's a piece of angle iron below that which was designed to slot into an 84cm gap. Collection from Pendeen.