The Internal Base can be added to the Sleeper Raised Bed or Aquatic Planter for extra support and height. Ideally used on hard-floored areas, such as patios and balconies. Elevated off the ground Pressure Treated Timber Made from sustainably sourced, slow grown softwood, from responsibly managed forests Please note - If a delivery is unsuccessful a refusal fee will charged. This cost can vary for each item.