The Twin Acanthus Dining Table Base pedestal is a classic decorating element, you can use one or two of the sculpture to create your own design.. Recommended glass sizes: one pedestal holds 48 to 54 round a pair holds a 36 x 60 rectangular top up to a 48 x 96 top. Generally, the glass top size should not exceed two times the diameter of the pedestal top. These pedestals were tested with the weight of a glass table top. Made of art grade plaster and come with a color choice.