Grip IV Grip Hand Time Change of Darts Made in Japan [Finger (Flat Surface)] Keychain, Play, Rehabilitation, Killer, Mind, Training,

The grip is flat (no recesses). A product that is used by repeatedly pressing and pushing two circular grips with your fingers. For training in finger games and sports such as darts. For killing time. For rehabilitation. Material is stainless steel (only the spacer is POM) *Please note that torsion springs are consumable items (replacement torsion springs are available). This is a stress relief item that is used by repeatedly pressing and pushing down on two circular gripping parts with your fingers. The structure incorporates a torsion spring, which is restricted from opening by an S-shaped stopper, and an axis and gripping part that are fastened to a plate with screws. The gripping part is barrel polished and has a pit cushion attached to it, giving it a good feel. Please note that there is no clicking sensation. Spring constant: 6.3 (N･mm/deg) Weight: 49.3g Length: 40.47mm Height: 35.24mm Width: 23.25mm