Cylinder cart are suitable for both outdoor and indoor use, and can be used to keep gas, nitrogen, helium, hydrogen, acetylene, and other various cylinders and tanks in safe storage. Specification: Material: Steel. Color: Blue/Gray. Width: 34 cm/13.4 in. Folded Height: 137 cm/53.9 in. Unfolded Height: 100 cm/39.4 in. Wheel Axle Length: 46 cm/18.1 in. Notch Width: 28 cm/11 in. Wall Thickness: 2 mm. Tube diameter: 25 mm. Weight: 13 kg/28.7 lbs. Base Plate: 33x20 cm/13x7.9 in. Thickness of Base Plate: 3 mm. Large Wheel Diameter: 20 cm/7.9 in. NRQUll Wheel Diameter: 7.5 cm/3 in. Suitable for gas cylinders 40 L/50 L. Features: 1. Can store any 40/50 liter cylinder. 2. Foldable design saves space. 3. With wheels for easy transportation. 4. Adopts anti-tipping triangular stabilizing structure. Package Includes: 1 x Gas Cylinder Trolley (Note: Cylinders are not included in this product). Tips: 1. Manual measurement, there will be 1-3 cm error, please understand. 2. Due to light and personal differences in color understanding, there will be NRQUll color difference, in kind prevail.