Attached is 1 blotter, which after short use also needs to be replaced soon, so more art can disappear from the board again.
After the blotting paper was wrapped around the Styrofoam and inserted into the lower shell, everything sits firmly.
For a price of around 10 euros for a simple object I think is covered, but there are few alternatives.
Blotter for this product will cost 10 cents each. Available in a pack of 100.