Strauss Adjustable Square Finger Hand Grip | Grip Strength Trainer & Finger Strengthener | Veins Strengthener & Forearm Grip Resistance Trainer | Hand Gripper for Men and Women,(Orange) All-in-one hand exerciser specifically design for many musical instrument. Also can be used for finger strength exercise in daily life. Safely and conveniently build strength, endurance, and flexibility and coordination, provides a complete strength training solution for fingers, hands, wrists, and forearms Individual finger tension is adjustable, You can select different tensions for each finger, providing all-in-one hand fitness. Safely and conveniently build strength, endurance, and flexibility and coordination, provides a complete strength training solution for fingers, hands, wrists, and forearms Individual finger tension is adjustable, You can select different tensions for each finger, providing all-in-one hand fitness.