Specially designed for the Body Archer Back Stretching Chair, our oversized microwavable heating pad adds a whole new wonderful experience when using our chair for stretching! Imagine getting the best back stretches ever with the added benefit of relaxing heat. We use only top quality thick, soft fabric and high grade 100% golden flax seed to give you super comfortable, long lasting, even heat from just a minute or two in the microwave. Measures 18" x 16.5" designed to fold and fit into any microwave oven with a 10" to 12" revolving platter. For a limited time FREE with every Body Archer order. Or, purchase it separately for only $29.95 including shipping.