Features: Ergonomic Back Support Chair with adjustable lumbar support corrects postures and alleviates back pains, for office chairs, floor seating, and home setups. This widened cushion features reinforced padding and flexible curvatures to withstands up to 800lbs while maintaining responsive spinal alignment. Ideal for prolonged sitter including office professional, students, drivers, and gamers for proactivedly lumbar care during study, work,or leisure activity. Versatiled for use on office chairs, car seats, game stations, floor, or sofas – adapts seamlessly to home, workplace, and travel environment. Promote sustainable spinal wellness by cultivating healthy sitting habits with just 30 minutes of daily use over two months for visible pose improvement. Specifications: Product name: waist protection cushion Product size: about 43x33x30cm/16.93x13x11.8in Bearing: about 800lbs Type: Widened and Thickened Cushion Package Includes: 1PC Chair Waist Cushion note: There might be a bit color distortions due to different computer resolution There might be size errors due to different computer resolution