BDK SC-056 Travel Warmer-Heated Seat Cushion 12-Volt Padded Thermal Release for Car SUV Van Truck & Office Chair Soft Padded Material - Enjoy Comfort & Warmth in Luxury Plug in to your car's 12V DC outlet and use the simple 3-way Temperature Toggle Easily attaches to most chairs and car seats with an elastic strap to wrap around Top Portion: 20" x 1825" Bottom Portion: 17" x 1825" 3/8" Foam Padding reduces back tension, aches and pains