ProErgo Pneumatic Ergonomic Kneeling Chair | Fully Adjustable Mobile Office Seating | Improve Posture to Relieve Neck & Back Pain | Easy Assembly | Use in Home, Office & Classroom

ProErgo Pneumatic Ergonomic Kneeling Chair | Fully Adjustable Mobile Office Seating | Improve Posture to Relieve Neck & Back Pain | Easy Assembly | Use in Home, Office & Classroom

Lifelong Original Office Chair Wheels (As Seen On CNN) Replacement Rubber Chair Casters for Hardwood Floors and Carpet, Set of 5, Heavy Duty Casters for Chairs to Replace Office Chair Mats - Fits 98%