The Square Cold Concept Plate Set includes a porcelain plate that is fully vitrified, a liner and a cold pack. To use simply place cold pack in freezer for a minimum of 6 hours and it will then keep contents cold for 2-3 hours. Lid sold separately. Great for all types of catered event or buffets. - Porcelain; white - Length 11 in - Width 11 in - Height 1 in - Sold per each ***CALIFORNIA PROP 65 WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm.***