PLC Gray Concrete TrivetThe Port Living Concrete Trivet will save your dining room tabletop or table cloth from drips, stains, heat and rings! The bottom of the tabletop trivet is backed with cork for tabletop protection. These trivets are hand burnished with FDA approved sealer from PLC concrete. Sustainability Portland limestone cement (PLC) is a blended cement with a higher limestone content, which results in a product that works the same, measures the same, and performs