S-King has been a remarkable enterprise in gel toe spacers industry. heel cushion is the main product of Dongguan S-King Insoles Limited. It is diverse in variety. The offered S-King is precisely manufactured using leading-edge techniques. S-King insoles have to go through more than 1,000,000 times of anti-bending tests. Excellent characteristics such as gel heel grips are obtained when using gel heel grips materials. All S-King insoles are under a 12-month warranty.
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