Product Description
Acts like a backsplash, preventing food spatters on wall tile, exposed brick and other surfaces behind the range, and creates a thermal barrier for combustible surfaces. Also elevates oven exhaust higher up the back wall to the ventilation hood.
Documentation
From the Manufacturer
Disclosures

Cancer and Reproductive Harm - P65Warnings.ca.gov
Acts like a backsplash, preventing food spatters on wall tile, exposed brick and other surfaces behind the range, and creates a thermal barrier for combustible surfaces. Also elevates oven exhaust higher up the back wall to the ventilation hood.