Masters 0992 Hand Grip Properties: The MASTERS hand gripper will help you train a stronger grip when you train at the gym using equipment such as bars or a barbell, but also in everyday life. Regular exercise will make your grip stronger and more powerful. The gripper has adjustable resistance ranging from 10 to 40 kg, so it can be used by both beginners and experienced players. The device is small, so you can take it with you anywhere and practice your grip whenever you feel like it.