High-density plastic Add-A-Level 2-5/8"H Modular Work Platforms replace worn out wood platforms or pallets. Chemical resistant and easy to move. Top surface features a flow-through grid that allows liquids and small particles to drain away. Add-on levels include stackers to easily connect platforms vertically. Connection clips lock units together horizontally in any configuration—in-line, around posts/machines, or over the entire floor. Made in USA.