Thermatek Heated Memory Foam Travel Pillow With Supersoft, Velvety Plush and Luxurious Memory Foam to Provide Ultimate Comfort to Support Your Neck- Includes 2 Heat Packs, Black Supersoft, velvety plush and luxurious memory foam provide ultimate comfort to support your neck Includes 2 heat packs - 16 hours of heat inside Easy to use - air-activated, instant warmth. Enjoy long-lasting, soothing comfort Heat packs are safe, odorless, disposable after use, and comply with airline security screening restrictions Ideal for use in the home or on the go