These are offcuts of pine tongue-and-groove boards. There are 20 pieces, although the photo shows 19. Lengths vary, approximately 34-39cm. Working width: 11cm Thickness: 1.2cm Measurements are approximate. The ends are cut and have some burrs. There are some imperfections such as warping, cracks, scratches, stains, mold, resin, and knots, but they can still be used with some ingenuity. We would like to offer these to those who can process them themselves and who understand the nature of natural wood and the imperfections of these items. Please refrain from purchasing if you are overly concerned about these details.