Increase leverage to help turn door knobs withthe Portable Door Knob Turner. The hook design is especially useful forpeople with arthritis or limited grasping ability. Great for traveling.Made of sturdy plastic. Rubber-lined interior surface preventsslipping. Easy to put on. Fits standard, round knobs with a 2" (5.1cm)diameter. The handle is 4-1/2" (11cm) long.