GENESIS - Smooth Pro Black 2x2 Ceiling Tiles 4 mm Thick &ndash; These 2&rsquo;x2&rsquo; Drop Ceiling Tiles are Water Proof and Won&rsquo;t Break - Fast and Easy Installation (Carton of 12) Genesis drop ceiling tiles are water proof, washable and mold and mildew resistant The ceiling panels are made of virgin-grade PVC vinyl and work with 15/16 grid systems Class A fire rated  25 Year Warranty  Impact Resistant A great alternative to acoustic ceiling tiles these drop ceiling tiles 2x2 are easy to install Each Genesis Carton contains twelve 2x2 ceiling tiles