The Pinnacle Black Stacking Chair, features a sturdy black plastic seat with perforated plastic back, mounted on a robust metal frame, which comes in black or chrome. The chair is ideal for school classrooms, meeting rooms, conference halls, or waiting areas, and is stackable up to 8 high. Optional arms are available which feature arm rests which will flip up to allow the chairs to stack. An optional trolley will carry up to recommended 10 stacked chairs. There is a minimum order quantity of 4 chairs, and the manufacturer offers a 5 year guarantee on the chair.