Experience unwavering durability and optimal comfort with this ergonomic office chair, featuring a heavy-duty metal base with a 150kg weight capacity, a 115 free-tilt mechanism, and BIFMA-certified safety. It includes a height-adjustable padded lumbar support, contoured seat cushion, and a ventilating mesh back for breathable support, all enhanced by 90 rotating flip-up arms with soft-padded rests for practical space-saving convenience. - Realm of Thrones Mesh Office Chair Flip-Up Armrests Adjustable Lumbar Support Black Desk Chair for Home Office Gaming Chair