Set of used Dyson attachments. There's some kind of turbine driven upholstery brush. I don't have a Dyson vacuum myself but I hooked it to my vintage Electrolux and whilst the agitator worked was a bit underwhelming. It might work better on a Dyson.
There is also a telescoping crevice tool and a small brush that fits on the tip of it. There's also a wall and bare floor brush and a couple miscellaneous