These are the cones we use in all our single cone models
We are making our proprietary cones available for repairs or replacements. These are not off the shelf generic cones, they are made to our specifications. That being said, resonator cone sizes are pretty standardized and these should work in just about any modern or vintage instrument.
• Cones are approximately 9 1/2″ in diameter. This is a common standard for both vintage and modern resonators
• Fits all Royall single cone models as well as many other brands on the market