polycarbonate tubes

These tubes are sold individually. They're made of very durable transparent polycarbonate. The dimensions of the skinny tubes are 9mm outside diameter, 6mm inside diameter with lengths of 131mm (5.2 inches) or 215mm (8.4 inches). The fat tubes have an outside diameter of 16mm and an inside diameter of 14mm with a length of 131mm (5.2 inches) or 215mm (8.4 inches). Polycarbonate is impact resistant.