Features: A comfortable necessary for driving in winter. Designed to be installed between the seat cover and cushion. Using a heating pad that can reduce air conditioning open, not only fuel-efficient can also relieve the air conditioning hot, relieve driving fatigue. Fits all seats such as car, SUV, truck, RV, boat, universal fit on any 12V DC system on leather. Made of carbon fiber material, quick heat-up time, not easy to corrode or break. Two heated pads for one seat: 1pc on back and 1pc on the bottom. With sticker, easy to install. The Features Of Alloy Wire heating: 1. Fast heating 2. Comes with round holes to facilitate seat ventilation. 3. Can not be cut. Specification: Material: Alloy Wire Dimension(Unit): Approx. 47cm x 27cm Wire Length: 25cm Color: White Power Rating: DC 12V, 27 ± 3W Thermostat: 35 +10 / -5°c Round Switch: 6 Level temperature adjustable Temperature range: 30-55 ℃ Fitment: Universal fits most cars please verify your seat covers are removable before purchase. Professional installation is highly recommended!!! Please DO NOT use on seats where the covers are fused to the foam. Package Included: 1 Set Car Seat Heater