Our office desk chairs use high-density sponge cushions. The padded office chair mesh seat is thick and resilient. Our office chairs are designed with a mid-back, and the office chair can provide good lumbar support. The backrest is covered with artificial high-density rattan mesh, which is durable, breathable, supportive, deformation-resistant and wear-resistant. The office chair has strong stability and mobility, and the office chair with a thick padded seat provides extra comfort for daily use. Just follow the instructions of the office chair, which only takes about 10-15 minutes to complete. You will find that our office chair is very easy to assemble. Assembly is not difficult.