What is the outside diameter of ribs?

Bottom = 19mm, Mid = 20mm, Top = 22mm

would these work as a replacement on a older glass decanter stopper? the decanter mouth is larger than a wine bottle.

These are used on a 1/2 wooden dowel. We used them on a craft club project. They might work on your project if there is a 1/2 tailpiece on your wine stopper

What size dowel is needed? 3/8" like the cork ones?

1/2". (often 1/2" dowels are typically about 1/16" oversized which is a good fit.)

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🍷 Seal in style, save the sip!

MADE IN THE USA - Proudly manufactured domestically, supporting quality craftsmanship and local industry.
SEAL LIKE A PRO - Ensures a flawless, leak-proof closure every time, preserving your favorite beverages.
ECO CHIC REUSABILITY - Washable and durable silicone means no more wasteful cork replacements—sustain your style sustainably.
TRUSTED WOOD RIVER QUALITY - Backed by Woodcraft’s 90+ years of woodworking expertise, blending tradition with innovation.
CUSTOM CRAFT COMPATIBILITY - Designed to friction-fit standard 1/2" wooden dowels, perfect for your bespoke woodturning projects.

Woodriver Silicone Bottle Stoppers (10-Pack) offer a durable, reusable alternative to cork, providing a perfect airtight seal on 1/2" wooden dowels. Made in the USA by Woodcraft, these washable silicone stoppers are ideal for woodturning projects and ensure your beverages stay fresh longer with sustainable, high-quality materials.

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