Boss Design Coza chair that boasts extraordinary comfort and dynamic support by using natural flexibility of a single ribbon of material. Coza is a unique design with simple functions and visual elements. Boss Design provides both durable support and a desirable level of flex to achieve a continuous and comfortable ride. Choosing Refurbished Chairs: We love bringing these back to life with the material being fully steam cleaned. Parts remain: The base and fixed arms may show signs of wear and tear. This will show signs of scuffs and minor scratches. This will not affect the functionality of the chair. Please note the price reflects on the wear thats on either side of the arms see image 5.