ERGONOMIC BIG & TALL OFFICE CHAIR: Provides exceptional seating for everyone from the CEO to the front office staff, ensuring the perfect balance of ergonomic comfort and optimal support for each employee.PRESSURE-RELIEVING COMFORT: Ventilated curved mesh back with integrated lumbar support prevents overheating and promotes better posture, while the contoured waterfall seat helps relieve pressure from the legs.FLIP-UP ARMRESTS AND CASTERS: Flip-up arms relieve tension from the neck and shoulders and are great for users who like the option of an armless chair, and the heavy-duty metal base with dual caster wheels enables easy movement.HIGHLY CUSTOMIZABLE SEATING: Features a pneumatic height adjustable swivel seat for easy maneuverability and tilt lock mechanism that lets you tilt the chair backwards or lock it in an upright position.EASY TO ASSEMBLE: Measures 31.5"W x 28.5"D x 43.5-47.5"H and can be assembled quickly with the included tools and step-by-step instructions, and it wipes clean with a damp cloth for easy cleaning.