The billiard ball racks are made of solid pine wood with black paint. The 8-ball billiard ball rack measuring 13"" x 11.6"" x 1.25"" the 9-ball diamond rack dimensions are 12"" x 8.25"" x 1.25"". The pool ball racks fit standard 2-1/4"" pool balls, perfect for home game room or bar use.