1.Ergonomic Design - Designed with human-oriented ergonomic construction.streamlined armrests fit the curve of your arms,allowing you to sit comfortably on a work chair. The locking mechanism is easy to adjust the height, keep the back upright, can take care of your lumbar spine, help prevent back strain and muscle fatigue. 2.Breathable Padding Seat - the padded mesh Seat is thick and resilient. Made of high Quality thick sponge and breathable mesh clothes, prevent body heat and keep your hip and legs sweat-free. 3.Lumbar Support - Our Home Goods Mid Back Best Ergonomic Office Chair we use resilient, strong mesh which moulds to your lower back, alongside the waist pillow offering superior support, protecting your lower back and promoting better spinal alignment. 4.Easy To Assemble - We provide all the tools and the detailed instructions for you. No additional tools needed for assembly. It is easy to assemble this office chair by yourself at home. 5.Customer Guarantee – We want all of our customers to feel ready to take on the day from the comfort of our chairs. This Home Goods Mid Back Best Ergonomic Office Chair comes with 3-years warranty, and a 100% satisfaction guarantee, but if you’re not satisfied, please contact GDHERO customer service.1.Located in Jiujiang, Foshan, HERO OFFICE FURNITURE is a professional manufacturer and exporter of office chairs&gaming chairs. 2.Factory area:10000 sqm; 150 workers; 720 x 40HQ per year. 3.Our price are very competitive. For some plastic accessories, we open the moulds and reduce the cost as much as we can. 4.Low MOQ for our standard products. 5.We arrange production strictly according to the delivery time required by customers and ship the goods on time. 6.We have a professional QC team to inspect raw material, semi-product and finished product, to make sure the good quality for each order. 7.Warranty for our standard product: 3 years. 8.Our service: faster response, reply emails within one hour. All sales check emails by mobile phone or laptop after work-off.