Benchmark's BR5404-E QuadRocker features a unique, tiered attachment system that accepts up to four platforms. Unlike traditional single platform rockers, the QuadRocker includes a base level as well as three additional stacking platforms, providing a total work-surface of over 750 sq. in. For most gel blotting, washing and staining applications, the rocker can be installed with all four rocking platforms. For applications requiring larger vessels, the quantity and height of the platforms can easily be customized to provide a maximum clearance of up to 8¼ in (21cm). The BR5404-E QuadRocker's versatility is further enhanced by digital speed and timer control, as well as user-adjustable tilt angle. The compact footprint and unmatched capacity of the QuadRocker make it the efficient way to rock!