Ship long and narrow items safely with our 4” x 4” x 36” heavy-duty corrugated boxes. Made from durable kraft paperboard, these rigid shipping boxes are designed to provide excellent strength, and protection. Perfect for packaging posters, rolled prints, metal rods, pipes, lighting parts, golf clubs, and other long products, these boxes offer dependable performance for eCommerce sellers, warehouses, and moving needs. Constructed from high-quality corrugated kraft material, they are strong, and easy to assemble—making them ideal for professional shipping and storage. Available in multiple pack sizes to meet small business and bulk shipping needs. Weight capacity: 45 lbs