The CanDo® Ergonomic Hand Grip is a great way to exercise and improve the strength in your hands. There are 5 different hand exercisers to choose from, each of varying difficulty. You can also purchase an entire set of all the different exercisers to give you a complete range of hand exercising options to use as your hand strengthens after prolonged use. See the chart below for the difficulty differences between the various hand grips - the weight shown is the amount of force needed to fully compress the fixed ErgoGrip handles.