"The - Stonfo Roto Dubbing Elite Twister - is one of my favorite luxury tools for fly tying. It allows you to create perfect dubbing loops seamlessly. Are there other options? Yes. Are they as nice? No.
The spring arms keep your thread open as you insert the dubbing or materials of your choice. When you put tension on the arms they close and seal your materials between the thread.
The spinner is smoooooth, and in an instant you have a beautiful dubbing brush.
When tying commercially I used this to shave minutes off of my tying, and I made THOUSANDS of flies with this tool. After 5 years of abuse the arms fell off. I glued them back in, and we are still in business to this day. I purchased another one that sits in the back of a drawer in case one day they discontinue this item because I love them that much."