This Vented Wall Shelf utilizes ion-technology that inhibits growth of mold, fungus & bacteria. Shelf is reinforced with a Camguard™ finish that won't scrape off, wash off or wear out. Made with rust free, recyclable polypropylene that is dishwasher safe. Weldless construction eliminates liquid or dirt penetration. Virtually indestructible I-beam supports have a unique snap fit rail design that ensures easy wall mounting. Shelf include 2" backsplash and marine front edge to control spills and cross contamination. Withstands temperatures up to 190°F. Will not corrode. Optional Shelf Extenders convert empty wall space into a functional peg hook storage area. NSF listed. Lifetime Limited Warranty.