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 20 stacked chairs. There is a minimum order quantity of 4 chairs, and the manufacturer offers a 5 year guarantee on the chair.