This Ateco 402 3-piece medium plastic coupler allows you to interchange medium & mid-range tips!

• Works the same way a normal coupler would; insert the coupler into a bag, cut a hole where needed, and then put on your tip and twist on with the top of the coupler. 
• Switch up your tips!
• Medium coupler saves time and effort by making it easier to switch piping tips when you're in the middle of decorating.
• Although this coupler works best with medium-sized piping tips that have a 3/4" bottom diameter, this item's 7/8" coupler ring can accommodate 3/16", 1/4", and 5/16" pastry tubes.
• The 1" coupler ring can hold 3/8", 7/16", and 1/2" pastry tubes.
• 3 Piece Kit includes: 
• 7/8" Coupler Ring
• 1" Coupler Ring
• Base
• Dimensions: Top Diameter - 3/4", Bottom Diameter - 1 1/2", Height - 2 1/8".
• This medium-sized coupler is made from sturdy plastic and is dishwasher safe for easy cleaning.