Herman Miller Aeron Mesh Desk Chair Medium Size B Fully Adjustable Posture Fit Graphite & Brown. Adjustable Arms up and down and in and out with levers. Wheels work on hard and carpeted surfaces. Breathable mesh fabric keeps you cool and comfortable. Chair is in very good fully functional lightly used condition with light signs of wear. Mesh is in great condition. There are light scratches on the frame of the seat and back and base that happened mostly during moving. Very light wear to the brown vinyl arms. TERMS & CONDITIONS OF SALE.