SpecificationChair Upholstery Material - MetalMain Color - BlackUse Case - OfficeChair Seat Recliner Operating Me - HandleMain Material - LeatherDetailsProduct Features - Long Time Comfort - Introducing our ergonomic office chair designed for ultimate comfort during long work sessions. Its high back, thickened headrest, and padded armrests provide exceptional support for your neck, back, and lower lumbar, while the breathable fabric and upgraded vibration design alleviate pain, ensuring you stay comfortable and focused all day long.Massage and Heat - Experience unparalleled relaxation with our versatile reclining office chair featuring 6 vibration settings and eight massage modes. Enjoy targeted relief with individually controlled strong or weak massages, and benefit from heating functionality that circulates blood and keeps you warm up to 120°F.Fully Adjustable - This office chair with lumbar support features a reclining backrest that tilts from 90°- 135 °, allowing for comfortable se