A rubber like material that is held in one’s hand and wrapped around a jar or lid. Used to get better grip and have an easier time opening the container. Used by those that have difficulty with gripping. Great for stubborn jars or medicine bottles.
Advantages
- small and easy to carry anywhere
- provides excellent grip on small bottles or containers
Disadvantages
- still require good amount of hand strength to twist open a jar or container as you are still doing the work