Heating element: Composite fiber wire Weight: 300g Colors: red, black Voltage, power: DC12V, 20W Temperature and switch controller: On/ Off; Hi- Lo; estimated temperature control; 5 steps temp control; customized controller This product is perfect for e- bike driver; skiing fans; those who are simply afraid of cold and want to keep hands warm! Products is washable, wire doesn' t break! The heating wire is patented by the company and is the best solution at the current market of electric heating products. Washable, doesn' t break or stretch.