Hyken Mesh Office Chairs with Adjustable Arms Keep cool throughout your day with the Hyken Technical Mesh Task Chair. Featuring breathable mesh and adjustable seat positioning, this office chair's technical design keeps you comfortable for hours. Maximize your seated position with changeable height and tilt and adjustable arms and lumbar support. Charcoal gray task chair. Mesh back and seat. Seat height adjustment, adjustable arms, tilt tension and tilt lock. Adjustable head rest. Suitable for up to 10 hours of use per day. Supports up to 275 lbs. Overall Dimensions: 45.3- 49.8 H x 27.2 W x 27.3 D. Chair Height: 45.3- 49.8 H (H lowest- highest). Seat Dimensions: 16.5- 19.8 x 19.3 x 16.8 (H x W x D). Back Dimensions: 23.4 x 16.2 (H x W). Arm Dimensions: 25.4- 25.8 x 31.5 x 17.7 (H x D). Meets or exceeds all ANSI/BIFMA Standards. 7-Year Limited Warranty. Easy assembly- Easy to follow instructions with corresponding part packs to reduce confusion and assembly time. Product Instructions.