Breathable and comfortable: Mesh backrest that keeps out moisture and allows air to circulate, keeping it fresh. Office Chair: Get an ergonomic swivel office chair. One year warranty: Contact Rattrix with any problems and they will provide excellent customer service. High quality: Three-stage steel gas lift passes SGS certification, and the chair passes push-back test of 102kg and static pressure test of 950kg. Adjustable: Rotates silently and freely 360°, with adjustable headrest, armrests and height. Ergonomic design: With adjustable parts and an S-shape that supports the spine.