The Cando Grip-master Is A Premium Finger Exerciser Designed To Develop Isolated Finger Strength, Flexibility And Coordination. Additionally, The Grip-master Builds Hand And Forearm Strength. Ideal For Those Suffering From Arthritis, Carpal Tunnel And Trigger Finger. The Device Allows Users To Strengthen Specific Hand Muscles Without Impacting Joint Issues. Terrific For Developing And Maintaining Strong Healthy Hands And Improving Neuropathy And Poor Circulation. Safe For Everyone As The Finger Guards And Hand Grip Are Latex-free. This Grip-master Is Black(x-heavy) And Features 1.5 Lbs. Of Resistance. The Grip-master Benefits Everyone From Athletes (wanting Stronger, More Powerful Hands And Fingers) To Musicians (wanting To Build Endurance And Make Fingers Faster). By Isolating Each Finger, Stronger Ones Can?t Help The Weaker Ones. This Allows Each Finger To Be Exercised Individually For Strength, Dexterity And Endurance. The Ergonomic Design And Molded Rubber Hand Grip Provide Extra Comfort. At Less Than 5? Long And Weighing Less Than A Pound, The Grip-master Stores And Travels Easily. Available In 5 Levels Of Resistance For Progressive Exercise. Levels Range In Order Of Strength From Least To Greatest Resistance: Yellow, Red, Green, Blue, Black.