The dual icing bag set allows you to pipe two different colours at oncegiving you a whole new level of creativity. With six nozzles included you canpipe in a variety of styles. The coupler with screw adaptor makes itincredibly easy to change nozzles in seconds. Perfect for icing all types ofcakes large and small. The set comes with Ten 12” disposable dual compartment icing bags. These bags are easy to use. Simply fill either sidewith your icing of choice attach your divided coupler and pipe just like anormal icing bag.