Gray marble slab 54" L x 23" W, about 1 and 1/8th" thick. One side is smooth, the other appears to have remnants of grout or concrete. We used to use this as a coffee table using 2 antique hot water heater stands for a base. Asking $75. You'll need to bring muscle...I'll bet it tops 300 lbs. Have other pieces as well. Call/text/email for a viewing. VT 370-1235