Sturdier than foam blocks, but safer for the environment than wooden ones. Who could ask for more? Bamboo is a fast-growing grass, rather than a slow-growing wood, and is therefore a more ecologically responsible material. In addition, these blocks are also very elegant - their distinct grain pattern gives each one a unique beauty. These excellent blocks weigh about 2 pounds each. Sold INDIVIDUALLY - not as a set of 2. Highly recommended! 3" x 5" x 9". PLEASE NOTE that due to the distinct appearance of each bamboo block, the actual block that you receive may differ in appearance from this image.