1.materials: alloy wire imported from Germany and non-woven 2.size :27*50cm or can produce as the request of customers . 3.heats up in second and even heat distribution. 4.voltage :12v 5.with preformed holes , so it's very convenient when fixing the heating pads into the seats. 6.with thermostor, when the tempreture is out of controlled tempreture , the circuit will open to stop electricity, when the tempreture is low, the circuit will close to open the circuit.So our heating system is very safe.