Solar Cooling Cap,china,wholesale,custom

Item No:BTR100244

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: a

Item No:BTR99794

Solar cooling cap absorb solar energy as the power, once you put it under the sunshine, that it will working. It is the best promotional gift on summer.