How about this one? - https://www.amazon.com/KIDAMI-Folding-Magnetic-Lightweight-Portable/dp/B01IN2PNTY/ref=sr_1_10?dchild=1&keywords=magnetic+chess+set&qid=1610453159&sr=8-10
It seems nice enough, a little bigger, too. Very positively reviewed, and you can't fake 1,407 ratings. There are some wooden folding sets in that price range, too, but they're very crude indeed.
A few months ago I bought a new "travel" sized set through Amazon.com. I wanted something to replace my old wood travel set, which I have had for more than 50 years. The hinges are falling apart.
I wanted something I could set up on my TV table and use to play through historic old games while I watch TV.
I wanted a set with annotation along the sides. I learned to play during a different era, and algebraic is new to me.
The set I bought is a magnetic set, wood colored plastic. The name on the box is "Waxmatbi," the set is made in China, and there are Russian letters on the box. Strange. I hope it's not made from some kind of plastic that will give me cancer someday.
The board measures 8'' x 8.5''. There is algebraic annotation along the sides, but the numbers and letters are so tiny they are useless for someone of my age.
Does anyone know of a travel-sized set with *visible* annotation along the sides that costs less than $30? I just don't have a huge amount of money to spend on a chess set.