These knuckle straps work in generally keeping the controller in your hands. The strap itself is generally comfortable and offers a fast stylish way to grip the controllers. However the design has you holding the grip slightly off with the thumb resting too high when wrapped tightly. This screws up the pistol-like grip position that the controller is designed for and can make the thumstick a little hard to operate at times. Also when throwing items, it can feel a little jarring when you let go of your hands and the controller wobbles.