Breathable Full Mesh Design: The backrest and cushion of our office chair are made of mesh with high elasticity, greater tensile strength and better air permeability Adjustable Mesh Office Chair: Our office chair has 360° rotation, 4.7 inch height adjustment, 30 degree swing function and adjustable lumbar support to ensure good support and more comfort 90° Flip Up Padded Armrests: Designed to be reversible with padding, the armrests can be easily lifted to 90°, it can be placed under the desk to save space and create a more efficient and comfortable working space Height Adjustable Lumbar Support Office Chair: This home office chair has an adjustable backrest with an adjustable range of 1.97 inches to ensure good support and reduce back pain Durable Desk Chair: Our home office chair are made of high density mesh, comfortable seats, sturdy gas cylinders and seat bases, it can bear up to 250 pounds