JIN BD Wrist Trainer Ball Auto-Start Wrist Strengthener Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Wri from fun bd Watch Video
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Description: JIN BD Wrist Trainer Ball Auto-Start Wrist Strengthener Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Wrist Bones and MusclesnnnDetailsnColorBLUEnMaterialSilicone, PolycarbonatenBrandJIN BDnStyleWrist BallnItem Dimensions LxWxH3.15 x 3.15 x 2.36 inchesnnnFeatures & detailsnAutomatic start design, need to push the core in the direction of the arrow, start by the internal spring, very easy and convenient.nWhen it rotates, the cool colored lights inside will light up. It
Play Video: (Note: The default playback of the video is HD VERSION. If your browser is buffering the video slowly, please play the REGULAR MP4 VERSION or Open The Video below for better experience. Thank you!)