Sonix High Under Desk Mobile Pedestal. With the filing features of the desk high pedestals, the high under desk mobile pedestal provides storage while keeping within the footprint of the desk itself. Suitable for use with all Sonix range desks. WxDxH: 420x570x610mm. Walnut. Please note that due to the size and weight of this product, fulfilment will take between 2 and 7 days depending on the delivery location and is subject to stock availability. If delivery is required to other than the ground floor or premises with non-vehicular access there maybe an additional delivery charge.