Package Dimensions: ‎16.5 x 16.3 x 3.2 cm; 90 g 【Multi-functional Grip Strength Trainer】The grip strength trainer not only strengthens fingers, wrists, and forearms, but also improves blood circulation in the hands and reduces pain. It can also reduce fatigue and balance muscle contraction and expansion. happykau Finger Trainer, Set of 2 Hand Trainers, 6 Adjustable Resistances, Finger Training, Finger Stretcher, Grip Assist, Functional Recovery, Grip Trainer Finger Power, Grip Strength Training, Stress Relief, Rehabilitation Equipment, Unisex 599 R12①-11 ⊹ ࣪˖ ┈┈ ˖ ࣪⊹ ┈┈⊹ ࣪˖ ┈┈˖ ࣪⊹ Check out other products ˊ˗ ☞ #List of other products from Ritz Shop ⊹ ࣪˖ ┈┈ ˖ ࣪⊹ ┈┈⊹ ࣪˖ ┈┈˖ ࣪⊹ ○ Items may be shipped without the box ( ˘¯˘ )ᐝ ○ If I am not familiar with the product, I may not be able to answer your questions, but please feel free to comment if you have any questions ✨️