DILIMI Finger Strengthener, Guitar Beginner Exercier, Finger Trainer, Hand Grip Strength Trainer for Athletes,Musicians

• The new 5 finger button design gives you more practice and a richer fingertip span practice.
• Soft button cap makes it comfortable to press.The slim size makes you hold it all in one palm.
• Made of pure copper core, adjustable in strength, suitable for users of all ages.
• With 2 buckles, any two of the buttons can be held down. You can choose whatever fingers you want to exercise at your will.
• The base and top buttons are made of high quality silicone with non-slip design.