I don't normally bake and I have never piped anything before in my life. This coupler really saved me, mostly because I didn't know what I was doing at the time. The coupler makes it easy to take off the tip and clean it out. I didn't sift the sugar (like I was supposed to) when I made my buttercream icing and large clumps of hard sugar kept clogging the tip. With the coupler I could easily pop the tip off, unclog it, and reattach it so I could resume icing. Without it, I would have had to dump the entire bag of icing as there would have been no way for me to unclog the tip! I know better now, but it was still really useful at the time.
It was also easy to try different tips out with this coupler. Large tips will not fit.
Change decorating tips with a quick twist; Our 4 piece coupler system saves time by making tip changes easier and faster when decorating your bakes; Includes coupler cap, coupler tip lock, coupler body and coupler base; Innovative design allows tips to quickly lock into place with one quick turn; Large coupler threads make using with decorating bags easier; Use and Care: Before first and after each use, hand wash in warm, soapy water; Rinse and dry thoroughly;