Fits the neck of any screw top bottle for nail liquid, acetone, alcohol, etc for a perfect pour EVERYTIME.
No need to balance your funnel while pouring liquids. The internal screw or "threading" creates barrier where your pour is virtually leak-proof.
Also comes with a handy universal cling to make sure you can find your funnel every time you need it. Universal cling allows it to attach to any sized container with a handle.