Designer Centerpiece Plant Tray Combo Model #: DWT-1218-30. Category: Lawn And Garden. Additional information Additional Information Dimensions 12″ & 18″ Plant Tray Case Pk 12” – 15 each 18” – 15 each Related Products 14″ Designer Centerpiece Plant Tray 10″ Plant Stand 12″ Plant Stand 6″ Plant Coasters with 2 Clip Strips