Solar Cooling Cap:
1, the solar cell: the non-brilliant silicon solar cell;
2, the material for making the outside: the full cotton yarn card (Recommend);
3, after puts up the knot: according to the needs (Recommend plastics seven apertures in the human heads are put up the knot);
4, the customer can have something making order to the pattern or the characters (can select silk screen stamp or computer embroider).
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