الاجهزه الالكترونيات الامريكية قد تحتاج الى محمول فولت من ١١٠ الى ٢٢٠.قد تحتاج إلى محول كهرباء
مميزات خاصة
MATERIAL: High quality bearing steel, high hardness, rust resistance, corrosion resistance, smooth surface, beautiful appearance
PRODUCT INTRODUCTION:Z QINGZHENG Baoding Balls are designed to provide powerful health benefits to those who use them. They are made from high-grade chrome steel and are hand-crafted with elegant pattern design. The balls are meant to be manipulated with the hands in a rhythmic way to improve overall health
FUNCTION:Enhances coordination and dexterity.Develops wrist, arm and finger strength.Relieves stress and tension.Increases circulation and flexibility
USER EXPERIENCE:Nice size and weight - just as described.These balls roll against each other with very little friction. I use them for plus strength、dexterity drills for both hands.Working the balls has a mild effect of reducing arthritic pain and stiffness as well.Many persons going through hand rehab or simply with stiff, arthritic hands can benefit by just a minute or two in each hand per day
AFTER -SALES GUARANTEE: There is a thin anti-rust oil film on the surface of the ball, which can be wiped off with a dry paper towel after receiving the goods