Scholar Craft’s 520 Series Polyethylene Shell Chair Desk is a durable, affordable and lightweight school desk for all your classrooms. The ergonomically contoured polyethylene shell gives students a comfortable place to sit, while the 16-gauge welded steel frame provides sturdy support. A 14-gauge steel arm holds the roomy, trapezoid writing surface. Comes with self-leveling nylon swivel glides. Available in eight attractive seat colors and a number of desktop finishes to match any room’s décor.