I’m telling a chess friend who has sight problems and needs a large board and set about this. The price looks very good.
A potential problems with sets that big is that they need to be properly weighted, otherwise every time you move you run the risk of having pieces knocking each other over like dominoes. (And if they are properly weighted, then they can be rather heavy.)
I don’t see any weight info in the specs.
Hollow or solid plastic, you can always weight them. For a player who will use the set at a tournament in the manner of a braille set, I don’t see a problem. That is what I hope my friend will use it for.
First club I was a member of had a blind player who dropped in from time to time. He had a nice wooden set with peg holes in the squares, one color of squares was raised, and pegs in the bottom of the pieces. The tops of the pieces had a knob for, I think, the black pieces. And, the set was quite usable by a sighted person as well. He would feel all the pieces and the squares, and could play at a credible C level.
There’s a guy at the Continental Open every year who plays with a set like that. It’s amazing how the brain can adapt and perform tasks in different ways.
These were very common some years ago. http://www.americanblindchess.org/sets.html The “Large Table Top Chess Set” sounds similar to the set you saw.
There are also software solutions for the visually handicapped (e.g., the legally blind with some functional vision).
http://www.braillechess.org.uk/ is also worth a visit.