Wilton Coupler Set, STD, White Description Coupler with rings hold most Wilton standard metal tip on any size decorating bag. To change tips, just, twist off ring and attach a new tip. Complete easy- to-follow instructions on Wilton decorating bag packages. Features: Fits all decorating bags and standard tips Easy to Change Made of plastic Dishwasher Safe Package contains set of 4 Product Details: Brand: Wilton Material: Plastic Color: White Number of Pieces: 1 Product Dimensions: 1.3 x 1 x 1 inches Item Weight: 0.634 ounces Manufacturer: Wilton Country of Origin: China Item model number: 411-1989 Is Discontinued By Manufacturer: No Date First Available: November 4, 2008