The secret of this bag? Its built-in spiral which acts as a spring. In the blink of an eye you can open it out and fold it up! It stands up vertically on its own and has a wide opening, perfect for easily filling and emptying of your plant waste. What's more, it has a cord so you can pull down one side to hold it near the ground: this makes it easier to fill directly using a rake. Synthetic material. 90L open: diam.45 x H.58 cm, closed: diam.47 x H.3 cm. 160L open: diam. 55 x H.70 cm, closed: diam. 56 x H.5 cm approx.