SIZE:45*40*10cm USB plug for easy charging. The heating pad is removable and washable. 3 gear temperature adjustment: the highest gear is about 50 degrees Celsius; the middle gear is about 43 degrees Celsius; the lowest gear is about 37 degrees Celsius. 3-level timing: 15 minutes timing; 30 minutes timing; 60 minutes timing. Premium Back Pillow - We know how crucial it is to feel comfortable while working, driving, or simply sitting for a long time.The lumbar support back pillow helps you maintain good posture and the spine's natural curve. Our chair back support pillow is made from premium memory foam that never flattens out, keeping proper firmness for ultimate back support Ideal Back Pain Pillow - The ideal supportive firmness allows the pillow to compress right, taking the exact anatomical shape of your back and providing comfort and relief the whole day long. An ergonomic design of our back support pillow for chair improves posture and blood flow, prevents muscle fatigue and back tightness, as well as upper, mid, and lower back pain One Pillow, Many Uses - You can use our office gadgets as a chair pillow, lumbar support office chair, and a lumbar support pillow for car, home, and even wheelchair.