These are scrap pieces of plywood. This is a set of 7 sheets, 4mm thick, A4 size (approximately 300mm x 200mm). They are cut slightly larger than the above size, but please understand that there may be some size variations. Although listed as "like new," they are unused. As they are scraps, there may be splinters, stains, etc. Please refrain from purchasing if you are sensitive to these issues. If you have any questions, please feel free to ask.