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Regularly: $0.99/Set

Other Available Sizes:

Overall User Rating from 49 reviews


  • 7/8" and 1" coupler ring included
  • 7/8" coupler ring accommodates 3/16", 1/4", and 5/16" pastry tubes
  • 1" coupler ring accommodates 3/8", 7/16", and 1/2" pastry tubes

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How to Pipe a Rose with Buttercream Frosting

How to Pipe a Rose with Buttercream Frosting

Use these simple steps to professionally add a buttercream rose. You'll need a spatula, rose tips, a leaf tip, couplers, a flower nail, a rubber spatula, and piping bags. Begin by squeezing cream onto the flower nail in a circular motion, creating a lump with a tip on it. To create the layers of a rose, squeeze cream in an short arch motion and continue rotating the rose until you have the desired amount of layers, or petals.

Copy and paste the embed code above.

Ever wonder how to professionally decorate your cake? Watch this short video and learn how to style up your next cake with a classic buttercream rose.

Color White
Material Plastic
Shape Round
Size Medium
Type Coupler Kits


This Ateco (August Thomsen) 402 3-piece medium coupler set allows the cake decorator to change similar sized tubes without emptying the contents of the decorating bag. This convenient set will be an ideal addition to any kitchen! The 7/8" coupler ring accommodates 3/16", 1/4", and 5/16" pastry tubes, as well as Ateco's 231 large bismark tube (August Thomsen). The 1" coupler ring accommodates 3/8", 7/16", and 1/2" pastry tubes.


Pastry Tube Chart Pastry Tube Chart

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Compatible Models

This item is compatible with the listed models, according to the manufacturer. We do our best to keep this listing as accurate and up-to-date as possible. If you have any questions or concerns, feel free to contact a Customer Solutions Specialist before placing your order.

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Customer Reviews

  • Overall User Rating:

    Ateco 402 3-Piece Medium Coupler Set (August Thomsen)

    4.9 stars from 49 reviews


    People Talk About:

    coupler tips Great set medium tip bag decorating pastry couplers
    1 out of 1 found this review helpful

    I love these. Use them all the time with cake decorating and so much easier to remove the tips and change the tip instead of using a new pastry bag. It is the tools like these that make a pastry chefs time easier, less hassles and the tools one needs.

    Posted on

    1 out of 1 found this review helpful

    We love these couplers!! August Thomsen certainly makes very sturdy and well-built and designed items. You can't go wrong with these to use on a daily basis.

    from Heavenly Hershey's Ice Cream Posted on

    1 out of 1 found this review helpful

    Anyone who does a lot of pastry work knows the sizes and varieties of tips is infinite. Having the right sized coupler is an absolute if you want to achieve the proper fit and seal to produce the desired results. Nobody beats Ateco's products or Webstuarant's prices!

    from Gert's Goodies Posted on

    1 out of 1 found this review helpful

    Ateco 402 3-Piece Medium Coupler Set (August Thomsen) fit perfectly with the tip and pastry bag. Great price for an good product. Will buy again if needed.

    from T & C Catering Services Posted on

    I bought this item on a whim because I normally don't bother with a coupler when using the larger tips. It is as expected, a good quality coupler by Ateco.

    Posted on

    This coupler is offered at a great price and gives you flexability and convenience while decorating. Be sure you are ordering the right size coupler as these items are not one size fits all pastry tips!

    Posted on

    This medium coupler works well for some of my larger tips and bags. It is designed well and cleans up easily. A standard for any baker.

    Posted on

    Great coupler and the price cannot be beat. Even though they are plastic they hold up pretty well. It is good to have a ton around while you are decorating with multiple colors.

    Posted on

    I'm a beginner and trying to figure this all out. I think I got a good one because it was easy to install, fits well, and didn't leak, also easy to clean, what more can I ask for?

    Posted on

    When you want to have a variety of sizes in being able to decorate your cake, this is the product you want to buy. Works so well in making sure my cakes look different and beautiful

    from Jr's Catering Solutions Posted on

    This medium size coupler is what I use with almost all my pastry tips. I haven't experienced any leaks and is super easy to clean. It comes in 3 pieces- a coupler and 2 rings to accommodate a range of tip sizes. Before I got into baking I had no idea what a coupler was, but now I know it's a definite necessity since it allows you to change a pastry tip without having to change a whole pastry bag.

    Posted on

    A great purchase. I use them all the time. Super easy to switch different tips without having to use a new pastry bag for different style tips.

    Posted on

    well designed. very functional. easy cleanup. good grip for working the frosting on anything from full size cake to smaller cupcakes. very pleased with the item and would recommend to others. sturdy design and easy to assemble

    from Chad Fenner Posted on

    Awesome coupler, comes with an extra top just in case you lose the first one! Fits well with most of my tips! We recommend ateco to everyone!

    from CakeBox Posted on

    I needed a larger coupler and this one does the trick. This product was what I expected. They work like they are supposed too. Great price good product.

    Posted on

    This will work very well if the tip fits the coupler, but some of my smaller tip won't stay in it... But for the one thst fit it work very well!

    Posted on

    Couplers are a must have when frosting lots of things and working with tons of colors. I don't know how I would manage without these couplers!

    Posted on

    I'm glad I purchased this size and that it comes with two different coupler "lids". One is more open than the other one. The one that has a smaller opening fits well with my cupcake swirl tips. I use the Wilton 1B tip for my cupcake swirls.

    Posted on

    I really don't understand the reason for the 3rd piece of this 3 piece set but I use the two pieces just fine and use the 3rd as backup..

    Posted on

    This is a huge coupler works great with my large bags when I have to do a large quantity of cupcakes, cookies or cakes . Very cheap too!

    from stellas custom cakes Posted on

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