Modular, stackable, ergonomic, recycled plastic work platforms replace worn out platforms and pallets and promote safety. Molded from rugged high density polyethylene resins, Add-A-Level platforms resist oil, gasoline, acids, and most industrial chemicals. Flow through grid design permits liquids to drain away. 1 - 6 units (2-5/8" H each) can be stacked to achieve the desired height. Connectors (RC3000) allow units to be joined side by side. Please choose your desired add-on unit(s) that corresponds in size to its Add-A-Level base units.