Butterfly-Inspired Design: The lumbar support of our swivel desk chair resembles a butterfly's wings and adds a touch of graceful artistry. The innovative feature elevates the chair’s aesthetics while offering effective lumbar support Selected Materials: Constructed with breathable mesh fabric, a durable nylon base, smooth rolling casters, and an SGS-certified gas lift, this robust home office desk chair is built for longevity and supports up to 300 lb Spacious Foam-filled Seat: This mid-back office chair boasts a large seat cushion, measuring 20.5″ W and 19″ D. Foam-padded for medium-firm support, the generous seating area enables a relaxed sitting posture, relieving discomfort after prolonged hours Smooth Mobility: Equipped with five durable nylon casters, this rolling desk chair provides silent and effortless movement for seamless transition between tasks. These multidirectional casters also protect your floor from scratches Quick Assembly: Set up your office chair in under 15 minutes with our detailed assembly instructions. The accessory kit is included to ensure a smooth and easy installation