Wilton Twist Nozzle Adapter Set Change your nozzles the easy way with this Wilton Twist Quick Coupler Set. It is a 4-piece set that will save you a lot of time. The set consists of: coupler cap, coupler body, coupler base and coupler tip lock. The innovative design allows you to change the nozzles with a simple twist. The coupler cap can easily be placed on the adapter, so you can use the icing or buttercream again at a later time. We recommend washing it by hand in warm soapy water after use. Then rinse well and dry. Not dishwasher safe.