I found this very hard to work and the was no mention that you had to buy nozzles to fit this ,I assumed my nozzle would fit this , there for I could not decorate my cake how I would have like .
I have now used the coupler a couple of times now and each time I have had problems with gripping all three placing the nozzle and then screwing the ring to connect them all together. In icing issues it's really good but troublesome to put together