The Eagle Group A4-63-2172V is a versatile add-on shelving unit designed for efficient storage solutions. This 4-tier unit measures 72"W x 21"D x 63"H and features durable wire shelves constructed with a patented QuadTruss® design, ensuring maximum strength and stability. It includes two 63"H posts for secure assembly and comes with two "S" hooks per shelf for added convenience. The VALU-MASTER® pewter gray epoxy finish provides a sleek look while enhancing durability. This shelving unit is knockdown (KD) for easy transport and storage and is NSF certified, making it suitable for various commercial environments.