Freestanding with legs, this space-saving light table will accommodate up to 4 Prism® Bases (sold separately). Quality hardwood. UL approved. Connector cord on/off switch. 20" long x 23" wide x 21" high. Weight 29 lbs. Dry Erase Top: Designed to expand table useage, these boards may be used with dry erase markers or as a base for putting puzzles together. For use with ALE-L4000 and 4001 Prism Light Centers. 8 3/4" long x 18 7/8" wide. Additional shipping charge apply.