5 TIER VENTED PLASTIC SHELVING 36""W X 24""D X 63""H NEXELON FINISH. NEXELITE STARTER UNITS ARE PERFECT FOR STORING ALL YOUR GOODS MATERIALS AND INVENTORY. STURDY FRAME COMES IN NEXELON FINISH. POLYMER COMPOSITION SHELF MATS ARE OF A MODULAR DESIGN ALLOWING EASY REMOVAL FOR CLEANING. THEY HAVE A VENTED OPEN GRID SURFACE THAT IS SMOOTH AND CREVICE-FREE. POLYMER MATERIAL WILL NEVER DENT CHIP RUST OR CORRODE. OPEN ON ALL FOUR SIDES FOR COMPLETE ACCESS AND SUPERIOR VENTILATION. STARTER UNIT INCLUDES 4 POSTS WITH LEVELING FEET 4 PLASTIC MAT SHELVES AND PLASTIC SNAP ON SLEEVES TO SECURE SHELVES TO POSTS. POLYMER COMPOSITION SHELF MATS. OPEN DESIGN TO MAXIMIZE AIR AND LIGHT CIRCULATION AND MINIMIZE DUST ACCUMULATION. INCLUDES 4 POSTS 4 SHELVES AND SNAP ON SLEEVES. SHELVES EASILY ADJUST WITHOUT TOOLS AT 1"" INCREMENTS. NSF APPROVED FOR WET OR DRY USE.