Heavy Duty Plastic Oxygen Cylinder Wrench – CGA-870 Valve Key for D & E Tanks, Lightweight Portable Oxygen Tank Opener Variety Combo Pack

["Compatible with CGA-870 Valves - Designed to fit standard CGA-870 post valves used on D and E size oxygen cylinders.","Easy Valve Operation - Helps open and close oxygen tank valves smoothly for controlled operation.","Heavy-Duty Plastic Construction - Durable yet lightweight plastic design for reliable everyday use.","Compact & Portable - Small, lightweight design makes it easy to carry, store, and use on the go.","User-Friendly Grip - Ergonomic shape allows comfortable handling with minimal effort.","Versatile Use - Suitable for home care, medical facilities, emergency kits, and travel use."]