Convergence is the ideal chair for any office - a one-seat solution that can do it all. Intuitive, adjustable lumbar support provides lasting comfort during long workdays, putting just the right amount of pressure on your lower back. With a clean, modern finish, the breathable mesh back in black flexes and responds to your movements. Advanced synchro-tilt control with seat slide supports any reclining position. The 3" thick seat cushion takes the stress off your lower body. Arms adjust in height and width to put the support right where you need it. Other functions include pneumatic seat-height adjustment from 15-3/4" to 20" and tilt lock. Easily move from workstations to conference rooms using the integrated, full-width handle across the top. Durable frame with a 275 lb. capacity sits atop a sturdy, five-star base equipped with hard casters that move effortlessly on any surface. Black fabric seat measures 20" wide x 19" deep. Back size is 18" wide x 22" high.