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.

Made of ABS plastic, copper and silicone.Each additional one scale, the pressure increases pound. The finger exerciser has a minimum pressure of 3 pound and a maximum of 8.5 pounds. Just one can meet your multiple needs, no longer need to spend more money.The 5-finger exerciser can help improve the strength and agility of hands and fingers, and is ideal for musicians.Specifications:
Number of adjustable key pads: 5

Dimensions: 105 x 66 x 23 mm (4.13 x 2.60 x 0.91 inches)
Net weight: 3.8oz/108g

Tension range: 3Lb-8.5Lb，Rotate clockwise to increase strength,counterclockwise rotation reduces strength