This is an FR4 copper-clad board measuring 305mm x 230mm with a thickness of 1.0mm.
I am selling 2 of these boards with surface defects; this listing is board "B".
As you can see from the photos, the board is fine on one side but has a few dots of corrosion on the edge of one side.
Like all copper-clad boards this also has the usual surface smudges and scuffs so scotch-brite and acetone at the ready!

Price is for 1 board only.
See my other listings for 1.6mm and 0.8mm boards, along with many ICs and other components.
I also have separate listings for these same boards without the defects!