Specifically crafted for safe use with steel cylinders ( not suitable for aluminum cylinders), providing secure operations Made from durability Polylactic Acid materials, ensuring strength and reliability for repeated use with cylinders Designed for both loosening and tightening pressure reducers and hoses, making it an essential tool for cylinder maintenance Weighing only about 18 grams, this 3D printed wrench is easy to carry and handle during outdoor activities like camping and hiking Ideal for camping, hiking, and other outdoor adventures where portable and reliability tool are needed for equipment adjustments, Manufacturer: Woedpez