The Colour Swirl 3-Colour Coupler seamlessly blends 2-3 colour icings as you pipe. Choose from double swirl or triple swirl colours. The interlocking coupler pieces connect multiple decorating bags, allowing you to swirl 2 or 3 colours together with one simple piping motion. Just connect and secure with the included ring. Perfect for cupcakes. Works with large tips #1M #1A  #2C and #4B and with 12 – 16 inch decorating bags (sold separately). This package contains three colour couplers and one cap to connect them. Hand wash only