Inspired by the Golden Gate Bridge, the Sayl office stool makes a big impact with a small footprint. Its unique unframed back features elastomer strands that are stretched to provide the greatest tension where support is needed and less in areas that benefit from a greater range of motion. Speaking of motion, the work stool's Harmonic Tilt technology offers sitters a sense of balanced movement and support as they move throughout the workday. Eco-Friendly Description: Indoor Advantage Gold certification is SCS Global Services' highest level of indoor air quality performance for furniture. The certification ensures that furniture products support a healthy indoor environment by meeting strict chemical emission limits for volatile organic compounds (VOCs).