Activities such as lifting a grocery bag or twisting a door knob, require excessive pressure on your wrist and finger joints.  Our fingers consist of small joints yet they absorb tremendous shearing forces from these activities.  If affected by arthritis, these joints become weak and unstable and can easily be deformed by repetitive stress.  These devices have been designed to take the load off your finger joints when you do heavy grasping or pinching tasks.  Using these devices will help you prevent developing or aggravating arthritic deformities.  They also help in controlling joint pain as a result of heavy hand use.