This item comes in assorted sizes. Sizes of the blocks will vary as no two packages are alike. While we make every effort to ensure items in stock are represented accurately online, at this time, we are unable to ensure that you will receive this item in the sizes you see pictured.This is the premier wood for all types of modeling projects. Balsa cuts easily with a hobby knife and may be stained or painted to represent any wood type. It is carefully dried in special kilns, reducing the water content to leave a light wood with a high strength to weight ratio. It is great for beginning wood carvers, crafters, modelers, students, architects and others who need high quality project woods.Details:BrownIncludes assorted sizes20 balsa blocksDried in special kilns