Senator Dash chair enhances the users experience of adjustability, comfort and flexibility for all body sizes. Dash has used the appropriate materials for the user to get the best experience in their task chair for their working environment. Choosing Refurbished Chairs: Our chairs are fully tested, and we love bringing these back to life with it being newly upholstered. Parts remain: The arms, castors and base may show signs of wear and tear. This will not affect the functionality of the chair.