Versatile: With two and three stage masts backed by a 48" high load backrest, the versatile Model RSS can handle all types of operations from retail to warehousing to manufacturing. Smooth Handling: The Model RSS is desig......Versatile: With two and three stage masts backed by a 48" high load backrest, the versatile Model RSS can handle all types of operations from retail to warehousing to manufacturing. Smooth Handling: The Model RSS is designed to handle heavier loads with precision, and comes standard with a load sensing torsion bar suspension for easier steering. With Modular Components and Robust Construction, these stackers stand up to years of use. Less maintenance and reduced downtime lead to a lower cost of operation.