Duro Tube 20 x 2.25 / 2.35 / 2.50 (Schrade... Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Duro Tube 20 x 2.25 / 2.35 / 2.50 (Schrade... Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...