Easy to assemble and made from heavy-duty, impact-resistant plastic, these shelves are built to be durable and long lasting. The ventilated shelf design allows for consistent airflow to help prevent rust, mold, and mildew. An interlocking feature allows for multiple shelving units to be placed securely next to each other for additional storage. This five-shelf storage unit is ideal for organizing household items, garages, tools, laundry rooms and much more. Made in the USA