IDEAL FOR BOTH TRAY DRYING AND STORAGE. THE MODULES FIT OVER ANY 24"" DEEP SHELF (NO TOOLS REQUIRED). 12""L AND HOLDS 7 TRAYS. COMBINE MODULES TO ACCOMODATE ANY LENGTH SHELF. UPRIGHTS ARE SPACED 1-3/4"" APART. POLY-Z-BRITE FEATURES A CLEAR POWDER-EPOXY OVER ZINC-CHROMATE ELECTRO-PLATING THAT HANDLES TEMPERATURE AND MOISTURE EXTREMES WELL. NEX GUARD AN ANTI-MICROBIAL AGENT PROTECTS THE EPOXY COATING FROM MOLD AND MILDEW THAT CAUSES ODORS AND PRODUCT DEGRADATION. NSF APPROVED FOR WET OR DRY USE. LIMITED FIFTEEN YEAR WARRANTY AGAINST RUST AND CORROSION.