Features:
–Easy to use.
–Mechanical design, no power required.
–The compact design can be carried around, whether in the office, gym, or at home, it can be used as a toy to relieve stress at any time, and can also exercise arm muscles.
–Exercise your wrists and hands.
–The hand booster ball is a centrifugal force generated by the interaction between wrist rotation and internal rotation core, which can maintain the high-speed rotation of the core, promote blood circulation, increase the strength of fingers, wrists, hands, forearms, biceps, triceps, ligaments, and shoulders, and restore muscle strength.
–Automatically start the design.
–The operation is very simple, just push the iron core in the direction of the arrow, activated by the internal spring. Please wear a dedicated wristband during exercise to ensure that the wristband will not be lost due to excessive force.
–Durable and sturdy.
–The ball core is made of zinc alloy material and has no strange vibrations.
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Néo Lortie –
The parcel arrived in Ukraine in about two weeks. This ball has a wonderful case instead of backlight! Advise
Lakisha Mullenix –
Works perfectly!
Starr Lheureux –
Working ball, I realized how to spin it more. I really feel it on my hands now. Now the product does not have a minus box, when I opened the bag I cut the cord on the pencil case, it’s a shame!!! The box could save. there is no LED, which also disenchanted! (
Anacleto Adornetto –
OK
Gérald Noir –
Nice compliment
Patty Balser –