Each single dock pontoon cube is designed to interlock with other blocks and V-blocks in the ‘Float my Boat’ range. This allows the creation of any size pontoon or boat dock you may require. Each single block measures 0.5m long, 0.5m wide and 0.4m deep. Each single cube provides a massive 95kg of lift when fully submerged. Made from tough virgin HDPE plastic and once connected has a massive two-tone tear strength.