specification: Item Type: Finger Flexibility Exerciser_x000D_Material: TPR_x000D_Size: Approx. 9.5 x 9.5 x 1.9cm / 3.74 x 3.74 x 0.75in _x000D_Applicable People: Office workers, homebody men, fitness people_x000D_Efficiency: Grip strength trainer for adults, improve hand spasms, arthritis and stroke, can be used for phone and computer enthusiasts, and also suitable for those with ADHD._x000D_Applicable Symptoms: Lady daily exercise_x000D_Grip Strength: 18kg /40lb Features: 1Prevent Slip: Hand recovery exerciser with anti slip particles design, which can effective prevent slip and also give your palm a comfortable massaging experience. 2Easy Grip: With four finger holes is more in line with the hand engineering design, hand grip exerciser is easy to hold, suitable for the finger exerciser of most adults. 3Widely Use: Adults finger flexibility exerciser can improve hand spasms, arthritis and stroke, can be used for phone and computer enthusiasts, and also suitable for those with ADHD. 4Portable Size: Finger training exerciser is small in size and light in weight, easy to carry and store, you can use it when you take a bus, watch TV, or in the office, etc. 5Washable Design: Hand grip strengthener made of high quality TPR material, soft and comfortable, can be washed by clean water, which is convenient for you to use. PackageList: 1 x_x000D__x000D_Finger Flexibility Exerciser