This door knob gripper was designed in consultation with occupational therapists to provide a product that easily fits over existing doorknobs to provide a good surface for gripping. By making the knob slightly larger it minimizes effort making opening doors easier for those with arthritis, carpal tunnel, or DeQuervains. In addition to providing a gripable texture there are wide ribs that assure that the hand will not slip. This gripper can also be used on some faucets. Styled to look good in your home and at use. Consider using this product on office doorknobs also.