Patio door, sheer, walk-through vertical blinds/curtains. Brand new in box. Cost over £560, so a total bargain. These are a cross between sheer curtains and adjustable vertical blinds. The sheer panels are not attached at the bottom so you can walk through them. To close them across a 4m wide patio door you slide each blind/curtain across to meet in the middle of the doors. I have the identical size blinds but a slightly darker colour (as in the last 3 photos) and they are fantastic. So much nicer than the old style vertical blinds, soft to touch, and by twisting the attached wands, you can change the amount of light filtering/privacy. These are from Blinds2go, but are identical to Allusion blinds.
eBay