Wilton Open Star Piping Tip #21

The Wilton Open Star Piping Tip 21 is a medium open star tip that produces clean, well-defined stars and shells with slightly more volume than the Tip 18. It is a reliable all-round tip for star borders, shell borders, rosettes, and swirled designs — ideal for cake decorators who want crisp, textured results across a variety of cake and cupcake styles. This product is temporarily out of stock — check back soon.

Key Details

• Tip number: 21
• Opening type: Medium open star (slightly larger than Tip 18)
• Material: Stainless steel
• Coupler compatibility: Fits standard coupler

Best For

• Star and shell borders on tiered and celebration cakes
• Rosettes on cupcakes and individual desserts
• Star fill-in patterns on sheet cakes
• Rope and swirl borders for a classic buttercream finish

Frequently Asked Questions

What does the Wilton Open Star Tip 21 make?

Tip 21 creates defined open star shapes, shell borders, and rosettes. It is very similar in use to Tip 18 but produces a slightly wider, fuller star. Holding the tip stationary while squeezing makes a full star; moving in a tight circular motion makes a rosette; squeezing while dragging makes a shell. Both tips work well side by side for varied border effects.

What coupler do I use with Tip 21?

Tip 21 fits a standard Wilton coupler. Browse the complete piping tips collection and all Wilton products at Baking Pleasures.