20-45KG Finger Ball Exerciser Hand Grip Strengthener Adjustable Power TrainingThe Grip Strengthener is made of high-quality materials that are built to last. A must have for building finger strength. It is perfect for strength training, and physical therapy for the hands and fingersIt is designed to withstand regular use and resist wear and tear, ensuring that you can continue to use it for a long time. This Grip Strengthener is compact and lightweight, making it easy to carry with you wherever you goThis Grip Strengthener can be used for a variety of exercises and workouts. You can choose the appropriate level according to your grip strength. Great to strengthen finger function and movementYou can easily fit it in your gym bag, backpack, or even your pocket, so you can continue your hand and finger strength training wherever you are. Whether you are recovering from an injury or simply want to improve your grip strength, this Grip Strengthener is a great tool to haveThese hand exercisers are great for guitarists, office workers,pianist,musicians,artist,craftsperson,woodcarver, webpage designer, etc. Exercise the whole arm to develop excellent hand wrist and forearm strengthSpecification:Material: ABS/TPE/Carbon Steel SpringPackage Included: 1 x Finger Grip StrengthenerNote:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.2. Please allow 1-3cm measuring deviation due to manual measurement. ( 1 inch = 2.54 cm )