This product is the Addis 11m airer on wheels.  The product itself is a god send.  Large enough for a full load of washing, if you want to move it just concertina it closed full loaded, wheel to desired space and open up again. Voila!
Wayfair's price is £20 less than the other staple online stores.  It is a no-brainer.  Fully recommend the product and Wayfair.  Superb, well done.