THEY HAVE A VENTED OPEN GRID SURFACE THAT IS SMOOTH AND CREVICE-FREE.
STURDY FRAME AND POSTS COME IN NEXELON® FINISH.FEATURES: POLYMER COMPOSITION SHELF MATS OPEN DESIGN TO MAXIMIZE AIR AND LIGHT CIRCULATION AND MINIMIZE DUST ACCUMULATION INCLUDES 4 POSTS, 5 SHELVES, AND SNAP ON SLEEVES SHELVES EASILY ADJUST WITHOUT TOOLS AT 1" INCREMENTS NEX GARD ® ANTI-MICROBIAL AGENT NSF APPROVED FOR WET OR DRY USE AGAINST RUST AND CORROSION Nexel , Nexelite reg , 5 Tier, Vented Plastic Mat Shelving Unit, 36"W x 21"D x 86"H NEX GARD ®, AN ANTI-MICROBIAL AGENT, PROTECTS THE EPOXY COATING FROM BACTERIA, MOLD, AND MILDEW THAT CAUSES ODORS AND PRODUCT DEGRADATION.