1、Excellent Plastic Material: This finger exerciser is made of excellent plastic material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. 2、Adjustable Resistance: This grip exerciser has an adjustable resistance range of 5 to 6 lbs (approx. 1 to 7 kg) per finger allowing you to meet all your exercise needs. 3、Wide Application: This finger strengthener has a wide range of applications, it is suitable for athletes, guitarists, musicians, physical therapy, finger training. 4、Compact And Portable: This finger strength trainer is small in size and light in weight, which is very convenient to carry and use, and can be used in a variety of situations. 5、Multifunctional: This hand grip strengthener can be used both to strengthen your fingers and to preview warm ups and stay in tune when away from your instrument. 1 x Finger Exerciser Item Type: Finger ExerciserMaterial: PlasticAdjustable Resistance Range: 2.5-6 lbs (Approx. 1.1- 2.7kg)Application: Athletes, Musicians, Therapy, Finger Training