Newey Technology Development Limited
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This hand grip is made of silicone.
Different colors you can choose
You can choose different strength,commen strength is from 30LBS to LBS.
It can be connected with phone APP by bluetooth,Tuya APP and Fit Monster APP
You can directly play the game from the Tuya APP.
Small and portable, suitable for all people to common hand strength training,hand relaxation and recovery.