Dongguan S-King Insoles Limited remains committed to the manufacture of gel toe spacers for many years. S-King Insoles has created a number of successful series, and heel cushion is one of them. The manufacturing of S-King women's gel insoles requires different high efficient testing tools. It will be checked for electric performance by virtue of a test pen, cable fault locator, electric screwdrivers, and thermistor detector. S-King PU insoles feature non-toxic and non-flammable functions. After a workout, the product is a good way to clear out built-up lactic acids. It helps relax sore muscles as well as relieving stiffness. The S-King liquid insoles can help to increase blood circulation.
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