The Kudos chairs have a fully mig-welded frame and an 'environmentally friendly' powdercoat finish. The powdercoat is a special 'hard finish' to resist scratching. The seat is attached to the frame with 'concealed' fixing screws. The chair is of a 'flex-back' design to allow and promote the necessary 'micro-movements' for superior ergonomic comfort. 5 year warranty. Available in Green, Blue, Yellow, Red, Navy and Graphite.