The Hopp allows active sitting while working, whether in the office or at home. This chair comes with a dynamic movement mechanism designed to find your balance once you have settled down comfortably in the middle of the seat, then continue adjusting automatically. The chair also comes with a comfortable seat, upholstered backrest and a designer plastic base with a black piston cylinder and multifunctional castors. The Hopp comes with a standard 5-year warranty, and a version with armrests is also available.