Kubbyclass Polar White 1000mm Double-Sided Library Bookcase KubbyClass Polar white furniture is a superior quality range of units that are manufactured in a solid 18mm MDF white outer finish that are available in choice of 7 colour themes. All units have a durable, 2mm bump resistant PVC plywood effect edge. Fantastic for use as a divider or feature bookcase in any library with their double sided safety