It is a stock alu tube, with ends shaped to fit the handlebars and small cuts made to pass hose clamps through, for holding the tube against the handlebars. The tube needs to be pushed slightly back, towards the rider, so that it does not interfere with the fork upon folding. It takes about half an hour to shape that tube, provided you do not need to redo anything. The ends of the tube may be hammered slightly to wrap them a bit around the handlebars.