This 40pc Basic Set includes 8 large red blocks (12” x 6” x 3”), 6 medium yellow blocks (6” x 6” x 3”), and 24 small blue blocks (6” x 3” x 3). ImagiBRICKS™ Giant Building Blocks are an enduring classic that offers endless play possibilities because they are versatile and safe. The blocks are printed with non-toxic inks and with their water-resistant coating are strong and durable for years of creative play.