Del Conca CUSANPT25 DUE2 Handboard for Wing Rack - This DUE2 Handboard is for use with a Del Conca Wing Rack. DUE2 is a 20mm thick porcelain stoneware collection by Del Conca USA. The collection is the right solution for any type of outdoor flooring and is hard-wearing, anti-slip, weather resistant and capable of withstanding heavy loads. Because DUE2 porcelain pavers are available in a range of sizes and material effects, it is a great alternative to the usual natural stone pavers or wood decking around pools.