6U wooden rack/flightcase with rails at the front only. Wouldn't be hard to fit a set of rear rails if you wanted them. In good condition, bar 4 small neat holes in one of the lids where a wheeled board was attached (this is not included in this sale).
As you can see from the manufacturer's site, these are £120 new Citronic : Product : Stands Racks & Bags : 19in Equipment Cases : 171.427UK
Looking for £40 collected from Grays, Essex, or £55 posted in the UK. International postage at cost. Will trade for a 3U wooden rack in a similar style.