This product is not an old standard product [pure], but a new standard product that is refreshed. (Set of 10): Size: Approx. Diameter 2.7 x Height 9.6 inches (68 x 245 mm), Weight: Approx. 4.2 oz (126 g), Contents: Approx. 16.9 fl oz (5,100 ml); Accessories: Mask: Component information: Oxygen 100%: Usage Time: Approx. 120 seconds (continuous use)