300mm x 900mm Novelkeys deskpads. Goes great with pulse set.
See https://novelkeys.xyz/collections/deskpads/products/pulse-deskpads?variant=12415478497373 for more info.
B-stock means there may be slight imperfections. In some cases, the deskpad may be 'out of shape'. They can be fixed by steaming or in some cases simply laying it out on the desk long enough.