Forts castles and bridges take on a whole new meaning with corrugated blocks and shapes from Young architects love to design large constructions using these oversized unique and colorful block shapes The durable and light weight design is perfect for younger users Includes a total of 45 extra sturdy oversized blocks in assorted shapes and colors Ages 12 months and up Features . Blocks are laminated for easy cleaning. Enhances construction and fine motor skills. Improves hand eye coordination matching patterning and problem solving skills. Ideal for home school or childcare centers Includes 45 Corrugated Blocks in the Following Shapes . 12 Yellow Medium Rectangle Blocks 6 x 6 x 3 inches Specifications . Grade Level Infant Toddler. Selling UOM Set of 45. Certifications Not Applicable. Safety No Choking Hazard. Allergens Contains No Allergens. Age Range 18 months. Weight 16 5 lbs