The WBT4-1872-74 Jaken Black Wire Add-On is an essential shelf for expanding Jaken mobile shelving systems. Measuring 18" deep by 72" wide and 74" tall, this add-on features a durable black powder-coat finish and open wire design for improved airflow and visibility. Perfect for industrial shelving and warehouse racking, it easily integrates into existing units to provide versatile, ventilated storage for various applications.