The very highest quality grade 4mm thick poplar plywood, mainly suitable for fine craft work, hobbyists and laser cutting. Light weight, light colour with a barely perceptible grain, making this the perfect choice for laser cutting. The quality grading is AB/AB, providing a high quality poplar face and core. This pack of 5 measures each at (length x Width): Measurements (length x Width): 600mm x 400mm 60cm x 40cm 23.62 inch x 15.75 inch Please note that as the plywood is a natural product and this is a very thin thickness, there could be a slight bow or twist when placed on a flat surface. This is normal and we recommend that the ends are taped down when used with a laser cutter. There is a small tolerance in thickness of +/-0.3mm. Small pin knots of a few mm in diameter may be found at times on some sheets.